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The Latest Breaking News from Mozilla

A suspected YouTube interface bug spikes RAM usage above 7 gigabytes, users report severe lag and frozen tabs — bug might be trapping browsers in an endless layout loop

Reports of YouTube freezing browsers and consuming massive amounts of RAM are spreading online, with developers tracing the issue to a suspected UI bug that may trigger endless layout recalculations and severe system lag.

Tom’s Hardware

This Firefox vulnerability may have been tracking all your private Tor identities – even in Private Mode

Researchers found a bug where websites could create a hidden ID and track users even in Private Mode.

TechRadar

Mozilla says Anthropic’s Mythos is ‘every bit as capable’ as ‘the world’s best security researchers’ after Firefox experiment — and says the ‘zero-days are numbered’

Mozilla’s experiment with Anthropic’s Mythos AI shows that machines can now match elite human researchers in finding software vulnerabilities

TechRadar

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'Defenders finally have a chance to win, decisively': Firefox CTO raves about Claude Mythos' bug hunting capabilities after it finds 271 vulnerabilities

That's one heck of a fly swatter, Anthropic.

PC Gamer

Mythos and friends could be a 'net positive' for UK cyber security defenses but only if they're secured, says top cyber official

Mozilla can attest to that after using Mythos to find 271 bugs in Firefox 150.

TechRadar

“A solid list from the community,” as Reddit users highlight 10 open‑source apps that run great on Windows 11 and deserve more attention

Reddit users consistently recommend a core group of open-source apps, and they also work on Windows 11. Check them out.

Windows Central

‘Going too far without user consent’: Mozilla blasts Microsoft’s AI creep as user backlash forces Copilot to be scaled back

Mozilla chides Microsoft for forcing its Copilot AI into apps and says Firefox works very differently.

TechRadar

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Mozilla says 'Microsoft goes too far' with Copilot, right before reassuring that you can turn off Firefox's 'AI enhancements'

Is AI integration really so inescapable?

PC Gamer

"Repeated choices to serve their business over their customers": Mozilla accuses Microsoft of using 'dark patterns' to force its Copilot AI on Windows 11 users

Mozilla argues that Microsoft’s rollback of its aggressive Windows 11 Copilot campaign amounts to an admission that it relied on deceptive tactics and dark patterns to steer users into behaviors that serve its own interests.

Windows Central

Firefox teases new logo without iconic fox

I think I know what's coming.

Creative Bloq

Still running Firefox on Windows 7? Mozilla has your back (for now) but admits it's risky without "official support from Microsoft"

Firefox just extended support for Windows 7, 8, and 8.1 by six months, giving systems that refuse to die more time to get updates.

Windows Central

Anthropic says it found a heap of Firefox security flaws using new Claude tools, says 'AI is making it possible to detect severe security vulnerabilities at highly accelerated speeds'

Claude finds 14 high-severity Firefox bugs in just a few weeks, rivaling what Mozilla could do in months.

TechRadar

Memory bit flips cause up to 15% of Firefox crashes, asserts Mozilla engineer — figure inferred from 470,000 auto-submitted crash reports

A Mozilla engineer has shared survey data and calculations suggesting that up to 15% of Firefox crashes are due to a bit flip.

Tom’s Hardware

Firefox gets "modern AI browser" features, but don't worry — Mozilla knows you'll hate it and already added an AI killswitch button

Firefox version 148 adds an AI "killswitch" to remove artificial intelligence implementations from affecting your browsing experience.

Windows Central

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Windows Central

YouTube’s war on ad-blockers just got personal — punishing users by hiding video descriptions and comments

A new report by AdGuard suggests that YouTube has stopped showing comments and video descriptions to some users with ad blockers installed on their devices.

PC Gamer

Firefox is finally ending support for Windows 7, 8, and 8.1, and urges users to upgrade or switch to Linux

Mozilla notes, "most browsers, including Google Chrome and Microsoft Edge, have already ended support for Windows 7, 8 and 8.1."

Windows Central

Firefox is ending support for Windows 7 as Mozilla recommends its users upgrade to Windows 10/11 for continued security updates — or switch to Linux

Mozilla is ending support for Firefox on Windows 7, 8, and 8.1 in February 2026. Users must upgrade to a supported version of Windows to stay secure and continue receiving browser updates.

TechRadar

‘Someone is actually reading the room’: Firefox just got an AI kill switch, and I hope other developers will follow its lead

Firefox is adding an AI kill switch that lets users disable the AI features in its web browser.

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Windows Central

Firefox's new AI kill switch reminds me that Edge still doesn't have a similar feature — a one-click toggle would only make Microsoft's browser more appealing

Mozilla announced that it's giving its Firefox browser an AI kill switch, making it easy to disable all AI enhancements with one click. Microsoft needs to add something similar to Edge instead of making us chase down individual settings.

PC Gamer

'We’ve heard from many who want nothing to do with AI' says Mozilla, as it introduces an AI blocking menu to upcoming Firefox builds

The people have spoken. Some of them, anyway.

PC Gamer

Mozilla says it's building a 'rebel alliance' to challenge Big Tech and what it's doing with AI, which is wild but I'm kind of here for it

The company has its own, apparently more open ideas for the future of AI.

PC Gamer

Mozilla is looking for 'Pioneers' to come up with new tools for 'the next version of the web', which is open-source but of course centred around AI

The champions of the 'modern AI browser' have a vision.

Windows Central

Firefox is becoming an AI‑powered browser, but Mozilla says every new feature will come with a full off switch for privacy‑minded users

Mozilla is pushing Firefox toward AI, but long-time users will still be able to disable every AI feature completely.

TechRadar

Firefox responds to AI backlash by promising a 'kill switch' for turning off controversial new features

The Firefox browser will soon include an AI ‘kill switch’ that will turn off all AI features, Mozilla has promised.

TechRadar

Firefox security warning - multiple browser addons found to be riddled with malware, so be on your guard

More than a dozen Firefox extensions were secretly stealing money from affiliates and tracking people's behavior.

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