How can a site see what extensions you have?
How can a site see what extensions you have?
One of the things I've seen mentioned before is that installing too many extensions can make you more unique, and thus have a negative influence on your fingerprint. This got me curious, how exactly do sites detect which extensions you have anyway? Can they outright read your list of extensions?
Furthermore, do all extensions make you more unique? I guess the answer would depend on the answer to the first question (surely, if they can just outright see your list, then the answer would be yes), but lets say you install something that seems rather innocuous, like Transparent Standalone Images, for example. Can a site see that this is installed / does it make your fingerprint more unique?
explanation
Web sites do not have any way to enumerate or query your installed extensions, and they cannot directly "see" the content scripts injected by extensions. However, some extensions do modify pages in a way that scripts in the page could recognize as being the work of a particular extension, assuming the owners of the site care to research and check for such things.One particular issue is that an extension may insert a path into the document to a page or image in the extension itself. Firefox assigns a randomized UUID to the extension at install time, and the path uses this UUID. On the plus side, this may prevent the site from associating the URL with a specific extension. On the minus side, at least in theory, a site could detect this weird URL in the page and use that for fingerprinting. See: How to prevent fingerprinting via Add-on UUID?.
is there anything else that I should notice?
Thank you!
Answered by @listless@lemmy.cringecollective.io
Web pages are not allowed to list your extensions. They can indirectly surmise you have certain extensions based on how your requests differ from expectations. For example, if they have advertisements, but your browser never actually makes any requests to load the images, CSS, JS or HTML for the advertisements, they can deduce you have an ad-blocker. That’s a datapoint they now have to ID you: “has an ad-blocker”Now let’s say they have an ad they know AdBlockPlus allows, but uBlock Origin doesn’t. They see your browser doesn’t load that ad. Another datapoint: “Not using AdBlockPlus”.
Based on what requests go back and forth between your browser and their servers, they map out a unique fingerprint.
like this
Gauging the Fallout From the US Strikes on Iran
https://www.bloomberg.com/news/newsletters/2025-06-23/gauging-the-fallout-from-the-us-strikes-on-iran?utm_source=flipboard&utm_medium=activitypub
Posted into Emerging Markets @emerging-markets-bloomberg
Nine years ago today the UK voted to leave the EU.
Since then our economy has shrunk, our creative industries have been damaged and our freedoms curtailed.
Now is the time to be having mature conversations about rejoining the EU and repairing the damage done by Brexit.
Tax expert Dan Neidle: "Reform UK is proposing a “Britannia card” that would let wealthy foreigners pay a £250k fee to move to the UK and live here exempt from all tax on their foreign income and property. All fees received would be distributed, “Robin Hood”-style, to the 2.5 million lowest-paid workers in the UK.
"Reform UK don’t include any analysis of the cost of their proposal. Our analysis of OBR data suggests the cost would likely be around £34bn over five years."
taxpolicy.org.uk/2025/06/23/br…
The £34bn cost of Reform UK’s “Britannia card” proposal
Reform UK’s Britannia Card would let wealthy foreigners pay £250,000 to avoid UK tax — but would likely cost £34bn and reduce skilled migration.Dan Neidle (Tax Policy Associates)
Musketeer – Coming Soon for Commodore 64
To the surprise of many, a brand new action-packed arcade adventure from Psytronik Software is coming to our favourite platform.
c64universe.com/2025/06/22/mus…
#Commodore64 #C64 #Commodore #retrogames #retrogaming
Musketeer – Coming Soon for Commodore 64
To the surprise of many, a brand new action-packed arcade adventure from Psytronik Software is coming to our favourite platform. Story: Set in 17th-century France, the game follows the last loyal m…The Universe of Commodore 64
Spain seeks immediate suspension of EU association pact with 'Israel'
Spain calls on the EU to push for an arms embargo over Gaza human rights violations.
Feel comfortable here
🇫🇷 Ah ce shooting… mon premier essai avec un flash cobra pour du fill-in. Mais en grand débutant que j’étais, je n'avais pas compris que la durée d'exposition serait bloquée à 1/200. Résultat, 99% des clichés cramés 😢 Du coup recours au sépia pour sauver les meubles.
🇬🇧 OMG this shooting… it was my 1st try with a flash for some fill-in. But I didn’t register that exposure will be stuck at 1/200. As a result, all the shots were burnt 😢 Hence the use of heavy sepia effect to save the day.
📅 25/08/2012
📷 #Canon550D, Canon EF 50mm f/1.8 II
⚙️ ƒ/2.5, ⏲️ 1/200, 🎥 50.0mm, 🎞️ 100
#Canon #photography #pixelfed #darktable #portrait #sepia
Iran launched a new missile barrage at Israel, triggering prolonged sirens across northern, central and southern regions, including Jerusalem.
At least four impacts were reported in Ashdod, Ashkelon, Safed and south of Jerusalem – new targets in this escalating conflict.
The attacks exposed gaps in Israel’s air defences, despite its advanced US-supplied systems struggling against Iran’s evolving tactics.
youtube.com/watch?v=ey6fntemLM…
🕎 🇵🇸 ☮️
#Gaza #Palestine
#Press #News
- YouTube
Profitez des vidéos et de la musique que vous aimez, mettez en ligne des contenus originaux, et partagez-les avec vos amis, vos proches et le monde entier.www.youtube.com
特に有名なのは藤の花
あしかがフラワーパークと言えば、やっぱり藤！
毎年4月中旬〜5月中旬にかけて、「ふじのはな物語」と題した藤の祭典が開催されます。
#photography #写真好きな人と繋がりたい #風景写真
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.
.
.
#fortlalatte #castle #seascape #cape
#photo #photography #castlesofinstagram #dcg9
#bzh #bretagne #plevenon
This takes me back to the research we did on comparing government blunders (and on cost overruns in megaprojects).
RE: bsky.app/profile/did:plc:fmgp3…
"""could"""? 🤔
theguardian.com/australia-news…
#YESItMakesUsATarget #Complicit #Corruption #AUSPol #News #War
Involvement in US strikes on Iran could make Australia a target, experts warn as government tight-lipped on Pine Gap
Calls for more transparency on potential use of US-Australian surveillance base at Pine Gap and Tindal airbaseBen Doherty (The Guardian)
Studi mancanti – Kostaive (e due)
Abbiamo parlato del nuovo vaccino Kostaive pochi mesi fa, con un articolo che in maniera abbastanza riassuntiva cercava di spiegare perché chi sosteneva che fosse stato approvato nel "silenzio complice dei media" stesse avvelenando il pozzo con la so…maicolengel butac (Butac – Bufale Un Tanto Al Chilo)
MAGA Gold Standard Science
Trump Turning Point
ALL GOVERNMENT EMPLOYEES WILL COME TO HEAL
msn.com/en-us/news/world/trump…
Databricks, Perplexity co-founder pledges $100M on new fund for AI researchers
https://techcrunch.com/2025/06/23/databricks-perplexity-co-founder-pledges-100m-on-new-fund-for-ai-researchers/?utm_source=flipboard&utm_medium=activitypub
Posted into Latest TechCrunch Stories @latest-techcrunch-stories-Techcrunch
Databricks, Perplexity co-founder pledges $100M on new fund for AI researchers | TechCrunch
Andy Konwinski is pledging $100 million of his own money for a new kind of institute to fund researchers. It's already backed Ion Stoica's new lab.Julie Bort (TechCrunch)
Cisl Scuola preoccupata per la pluriclasse da 19 alunni a Nave: “Situazione non ottimale”
Il segretario generale Gian Michele Mostardini si schiera con le famiglie e la dirigenza scolastica: "Scelta da riconsiderare"
The post Israelische Militäroperation birgt Leiche von deutschem Opfer des 7. Oktober appeared first on Apollo News. #news #press
Israelische Militäroperation birgt Leiche von deutschem Opfer des 7. Oktober - Apollo News
Der Deutsch-Israeli Shai Levinson wurde am 7. Oktober von der Hamas ermordet. Seine Leiche wurde in den Gazastreifen verschleppt, wo sie am Sonntag zusammen mit den Leichen von zwei anderen Opfern des Hamas-Massakers durch Israel geborgen werden konn…Redaktion (Apollo News)
Roland Häder🇩🇪 likes this.
globalist.it/politics/2025/06/…
La famosissima statura internazionale di Giorgia Meloni. Ma altissima
Meloni tra ambiguità e reticenze: niente critiche a Trump, quasi muta su Israele e promesse vuote
L’intervento della presidente del Consiglio Giorgia Meloni alla Camera, in vista del prossimo Consiglio europeo, ha mostrato ancora una volta tutti i limiti di una politica estera che si muove tra calcoli elettorali e sudditanza atlanticaglobalist (Globalist.it)
US Warns of Iranian Cyber Threats After Strikes
https://www.bloomberg.com/news/videos/2025-06-23/us-warns-of-iranian-cyber-threats-after-strikes?utm_source=flipboard&utm_medium=activitypub
Posted into Bloomberg Television @bloomberg-television-bloomberg
HyperOS 2.2: mega atualização da Xiaomi chega em breve a mais de 40 equipamentos
🔗 tugatech.com.pt/t68420-hyperos…
Modernizing Wire Harnesses for the Aerospace Industry
https://www.bloomberg.com/news/videos/2025-06-23/modernizing-wire-harnesses-for-the-aerospace-industry-video?utm_source=flipboard&utm_medium=activitypub
Posted into Bloomberg Television @bloomberg-television-bloomberg
Zouden #Schoof en #Veldkamp er nu ook iets over durven zeggen? Ik denk het niet.
politico.eu/article/emmanuel-m… #Macron #Amerika #Trump #Iran
Macron: US strikes on Iran aren’t legal
European leaders are walking a tightrope between condemning Tehran’s nuclear program while calling for restraint.Clea Caulcutt (POLITICO)
Bezos' Lavish Venice Wedding Spurs Demand for Global Billionaire Tax
Activists are protesting billionaire Jeff Bezos's wedding in Venice with calls for a global billionaire tax.
Archived version: archive.is/newest/commondreams…
Disclaimer: The article linked is from a single source with a single perspective. Make sure to cross-check information against multiple sources to get a comprehensive view on the situation.
Bezos' Lavish Venice Wedding Spurs Demand for Global Billionaire Tax
"This isn't just about one person—it's about changing the rules so no billionaire can dodge responsibility, anywhere," said one Greenpeace campaigner.jessica-corbett (Common Dreams)
it's happening! "The Secret Rules of the Terminal" is coming out tomorrow!
(update: it's out now!! you can get it here: wizardzines.com/zines/terminal…)
here's the table of contents:
reshared this
Scotiabank Hires JPMorgan’s McDowell to Lead Corporate Banking
https://www.bloomberg.com/news/articles/2025-06-23/scotiabank-hires-jpmorgan-s-mcdowell-to-lead-corporate-banking?utm_source=flipboard&utm_medium=activitypub
Posted into Business @business-bloomberg
A Day Before the Election, Poll Shows Mamdani Besting Cuomo in NYC Democratic Mayoral Primary
New poll shows Zohran Mamdani narrowly leading Andrew Cuomo in NYC Democratic mayoral primary.
A Day Before the Election, Poll Shows Mamdani Besting Cuomo in NYC Democratic Mayoral Primary
"On the day before the election, we stand on the verge of toppling a political dynasty and winning a city we can afford," wrote Mamdani.eloise-goldsmith (Common Dreams)
Judge denies creating "mass surveillance program" harming all ChatGPT users
Link: arstechnica.com/tech-policy/20…
Discussion: news.ycombinator.com/item?id=4…
Judge rejects claim that forcing OpenAI to keep ChatGPT logs is mass surveillance
OpenAI will fight order to keep all ChatGPT logs after users fail to sway court.Ashley Belanger (Ars Technica)
Iran Targets Qatar Base Used by US Military in Retaliation for Unprovoked Trump Attack
Sources also said Iran launched at least one missile at a U.S. base in Iraq.
Archived version: archive.is/newest/commondreams…
Disclaimer: The article linked is from a single source with a single perspective. Make sure to cross-check information against multiple sources to get a comprehensive view on the situation.
Cos’è questo nuovo vaccino “autoreplicante” di cui ho sentito parlare?
Il nuovo vaccino Kostaive approvato dall’Agenzia Italiana del Farmaco contro il Covid-19 può davvero trasmettersi per via aerea?Query Online
Ben(e)detto – Siamo arrabbiati
@Politica interna, europea e internazionale
L'articolo Ben(e)detto – Siamo arrabbiati proviene da Fondazione Luigi Einaudi.
Politica interna, europea e internazionale reshared this.
FICO to incorporate buy-now-pay-later loans into credit scores
FICO credit scores will begin incorporating buy-now-pay-later data for the first time.
https://www.axios.com/2025/06/23/fico-credit-scores-bnpl-buy-now-pay-later
(Ik sluit zo af, anders slaap ik niet, wordt toch al lang woelen... wat een hel en agressie overal)
mastodon.social/@EndIsraeliApa…
End Israeli Apartheid (@EndIsraeliApartheid@mastodon.social)
Israeli warplanes carried out a series of airstrikes in southern Lebanon on Monday evening despite a ceasefire agreement, Lebanese media reported.Mastodon
The NO FAKES Act Has Changed – and It’s So Much Worse
A bill purporting to target the issue of misinformation and defamation caused by generative AI has mutated into something that could change the internet forever, harming speech and innovation from here on out.
Oi, por que você está me enviando mensagem? Oi, como você pegou meu número?
OI, VAI À MERDA.
A imagem mostra uma postagem de um perfil chamado "Sebrae Facilita" no Facebook. O perfil tem um ícone azul com o logotipo do Sebrae, uma organização brasileira que apoia empreendedores. A postagem é datada de "agora" e começa com uma saudação "Oi!" seguida de um ícone de uma planta brotando, simbolizando crescimento e sustentabilidade.
O texto da postagem convida o leitor a se interessar por um negócio mais responsável e competitivo, destacando um curso ESG (Environmental, Social, and Governance) para pequenas empresas. O curso é gratuito, com acesso por 30 dias e certificado incluído. O texto enfatiza que o conteúdo é direto e útil, adaptado às necessidades do leitor.
Na parte inferior da postagem, há três opções de ação: "Responder", "Marcar como lida" e "Silenciar", indicando que o leitor pode interagir com a postagem.
Fornecido por @altbot, gerado localmente e de forma privada usando Ovis2-8B
🌱 Energia utilizada: 0.235 Wh
Iran launches multi-salvo attack on 'Israel', strategic facility hit
Sirens have sounded nonstop for at least 40 minutes in the north, south, and center, spanning large areas.
Op. True Promise 3, wave 21: Multi-warhead missiles rain on 'Israel'
The IRGC has launched multi-warhead ballistic missiles using unprecedented tactics toward occupied Palestine, triggering sirens all over the occupied territories.Al Mayadeen English (Op. True Promise 3, wave 21: Multi-warhead missiles rain on 'Israel')
zhjake_draws - Twitch
For an Angel to manifest into a material level, it is tasked with forcing the divine unknowability of Gods light into a body of flesh and bone.Twitch
Esplorazione Critica Urbana - Cecco Rivolta 2000-2025
CR25 cerca di rispondere all’esigenza diffusa, riscontrata in una varietà di iniziative analoghe (CritiCity, Innesco, Salviamo Firenze, Tellurica…) di connettere le isole che costituiscono l’arcipelago della città sommersa: un arcipelago fatto di sto…veneraLA
Finished migrating over most of my projects/repos to #codeberg
I figure this will make things easier for those wishing to contribute (as much as I love email-based git workflows)
btxx
Codeberg is a non-profit, community-led organization that aims to help free and open source projects prosper by giving them a safe and friendly home.Codeberg.org
Sources: Mark Zuckerberg discussed a possible acquisition with Runway AI; the deal talks never reached a formal offer level (Bloomberg)
bloomberg.com/news/articles/20…
techmeme.com/250623/p34#a25062…
Sources: Mark Zuckerberg discussed a possible acquisition with Runway AI; the deal talks never reached a formal offer level
From Bloomberg. View the full context on Techmeme.Techmeme
Roland Häder🇩🇪 likes this.
Iran’s misery
As Israel and Iran trade alternate missile attacks after Israel launched a major offensive last week, US President Trump has proposed a two-week interval to negotiate a ‘surrender’ deal with Iran o…Michael Roberts Blog
theguardian.com/commentisfree/…
Israel kills innocent Palestinians. Activists spray-paint a plane. Guess which the UK government calls terrorism
If Palestine Action becomes a proscribed group, writing these words of support could become a serious offence. It’s vital we fight this alarming attack on free speech, says writer Sally RooneySally Rooney (The Guardian)
Protest against #Trump's attack on #Iran has already begun in the #UnitedStates. People are saying that attacking without the approval of #Congress is wrong.
MiGreat (bron, bron)
LOCATIE UPDATE: MARTIN LUTHER KING PARK
De derde jaarlijkse MOVE demo vindt officieel plaats op het Museumplein!
Op 28 juni om 14.00, komen we met duizenden uit heel Nederland samen in Amsterdam om te demonstreren voor vrije migratie en tegen het racistische Nederlandse migratiebeleid. We verzamelen op het Museumplein en gaan daarna de straat op.
De demo van 2025 wordt onze grootste tot nu toe. Ontdek hoe je jouw steentje kunt bijdragen.
WIL JE HELPEN?
Speel op onze demo 🎶!!
"Resistance must include joy, celebration, and dance" (Emma Goldman)
Of je nu zanger of muzikant bent of in een band speelt, we nodigen je graag uit om mee te doen aan de demo! Neem contact op via info@migreat.org.
Bestel deze poster en onze flyers (kosteloos). Vul jouw stad met onze boodschap voor vrijheid van beweging. Elk hoeveelheid is welkom, afhankelijk van je eigen capaciteit! De link vind je hier.
WORD EEN LOCAL ORGANIZER
We willen elke provincie, elke stad en elk dorp in Nederland betrekken.
Onze oproep voor lokale organisatoren staat nog open: kom naar onze algemene vergaderingen, haal geld op voor treinkaartjes voor wie dat niet kan betalen, mobiliseer jouw gemeenschap via pre-activiteiten. We bespreken graag jouw ideeën en bijdrage, afhankelijk van jouw capaciteit.
Ga naar hier om je aan te melden!
DONEER!
Onze MOVE demo kost geld, net als onze strijd tegen grensgeweld en paspoortapartheid.
Als je niet op andere manieren kunt helpen, kun je ons altijd steunen met een eenmalige of maandelijkse donatie.
Dankjewel!
Sunday question: What do you say about Berlin abolishing the 30 km/h speed limit because the air has improved thanks to the 30 km/h speed limit?
EDIT: changed article link and title to comply with rules (that I didn't read 😛). The article that is linked now, links to the previous one (this one rbb24.de/politik/beitrag/2025/…), and the title is the google translated of the new article, as close as original German as I can
The absurdity of the proposal is already in the title, and shows how motonormativity is spread all over the world.
Berlin has a very good public transit system, and a few 30 km/h zones cannot be that bad.
I would love to hear opinions from someone who lives there!
crossposted from: mastodon.uno/users/rivoluzione…
Tempo 30 steht auf Dutzenden Hauptstraßen wieder zur Debatte
Auf Dutzenden Berliner Hauptstraßen wurde wegen schlechter Luftqualität Tempo 30 eingeführt. CDU-Verkehrssenatorin Bonde will dies zurückdrehen. Die SPD befürchtet negative Auswirkungen für Schüler und fordert erst eine ausführliche Prüfung.www.rbb24.de
Non solo in Italia: a Berlino vogliono togliere le zone 30, perché l'aria è migliorata, grazie alle zone 30.L'assurdità della proposta è tutta nel titolo, e dimostra quanto la #motonormatività sia diffusa. #Berlino, una città con #trasportoPubblico davvero eccellente, può concedersi tranquillamente zone dove la velocità non la fa da padrone.
rbb24.de/politik/beitrag/2025/…
Tempo 30 steht auf Dutzenden Hauptstraßen wieder zur Debatte
Auf Dutzenden Berliner Hauptstraßen wurde wegen schlechter Luftqualität Tempo 30 eingeführt. CDU-Verkehrssenatorin Bonde will dies zurückdrehen. Die SPD befürchtet negative Auswirkungen für Schüler und fordert erst eine ausführliche Prüfung.www.rbb24.de
like this
Feddit Un'istanza italiana Lemmy reshared this.
L’erosione dei diritti LGBTQIA+ in Europa - Valigia Blu
Italia e Ungheria sono tra i paesi europei dove i diritti delle persone lgbtqia+ sono sempre più a rischio.Alessandra Vescio (Valigia Blu)
relic4322
in reply to Holeheadou92984 • • •everything you do to customize your browser makes your browser fingerprint unique. but you have a mostly unique fingerprint due to things you arent considering as well. system related stuff that your browser tells about you.
you have some options. 1) there are addons that limit privacy issues, 2) use a local web proxy, im using squid proxy for example just have it running on an old laptop. Optionally, I would also say, from a privacy standpoint look into DNS blackholing pihole, unbound, etc, and there are plenty of other things.
my favorite addons are ublock, privacy badger, i run noScript which is probably more painful than most are willing to put up with but I have heard that jShelter is a good compromise.
Holeheadou92984
in reply to relic4322 • • •relic4322
in reply to Holeheadou92984 • • •The problem with hardening your system is that you become more identifieable unless you provide fake data. For example, here are my test results from coveryourtracks.eff.org
Within our dataset of several hundred thousand visitors tested in the past 45 days, only one in 2054.58 browsers have the same fingerprint as yours.
Holeheadou92984
in reply to relic4322 • • •Postmortal_Pop
in reply to relic4322 • • •relic4322
in reply to Postmortal_Pop • • •Yes, you can give fake info. I would say thats kinda the next step. Harden your browser and associated tech stack so you are secure. Then provide fake data that is generic enough so that it blends in. firefox or chrome standard agent, windows 11, etc.
for example
deviceatlas.com/blog/list-of-u…
List of User-Agent strings 2025
DeviceAtlasHoleheadou92984
in reply to Holeheadou92984 • • •Answered by @listless@lemmy.cringecollective.io
relic4322
in reply to Holeheadou92984 • • •plugins are definitely detectable.
just came across this, worth checking out your browser security.
coveryourtracks.eff.org/
Cover Your Tracks
coveryourtracks.eff.orgskarn
in reply to relic4322 • • •relic4322
in reply to skarn • • •