I-Firefox Community Forum

I assume Mozilla developers are working on this?

https://singularityhub.com/2026/04/10/anthropics-mythos-ai-uncovered-serious-security-holes-in-every-major-os-and-browser/

Quote from the article

"Its capabilities are a step change from the previous best models. Given the challenge of attacking the Firefox web browser’s JavaScript engine, Anthropic’s previous most powerful model Opus 4.6 succeeded just twice, compared to 181 times for Mythos. Most worryingly, the team found that engineers with no security background could use it to develop successful attacks overnight."

Further to the malware, it references Windows OS but has seized her Mac. I powered off. Rebooted. Within about 15 seconds of opening Firefox the malware pops up and freezes the Mac. By the third time I was able "force quit" Firefox and the other applications function properly. I beleive I deleted Firefox but probably didn't get it all out. I reinstalled firefox and upon booting up Firefox the malware is still activated. Can you please assist with a fix?

I installed a "messenger app" and it was obviously malicious... I uninstalled everything I could find, but I still am having my address bar hijacked, every time I enter something, it redirects me to "tracksearching.com" I've installed and ran Malewarebytes, Avast, AVG, and Windows Scanner, nothing picks it up or changes anything. I need help! Obviously something is still manipulating my key entry.

Is the following true and do you advise taking the steps mentioned. Cookies are dying. Google has been phasing out third-party cookies in Chrome, and Apple has aggressively blocked them in Safari for years. Advertisers needed a replacement that users cannot easily clear, block, or reset. Browser fingerprinting is that replacement: it is invisible, persistent, and rebuilds itself if your setup changes slightly. The result? Targeted ads that follow you across devices and sessions, even when you think you’ve gone "private." And because it operates below the surface of most privacy laws, the protections many people rely on simply don’t apply. What Actually Works to Protect Yourself Most people get privacy wrong by making their setup more unique (rare browsers + 30 extensions = the most identifiable fingerprint on the internet). True anonymity comes from uniformity, not obscurity. Here are the proven defenses, ranked by effectiveness: 1. Choose the right browser (the single biggest decision) Tor Browser – The gold standard. It forces every user to share the exact same fingerprint. Anonymity through uniformity. Brave – Excellent middle ground for everyday use. It randomizes canvas, WebGL, audio, and other fingerprintable surfaces every session. Firefox (with strict settings) – Strong out of the box and highly customizable. Avoid Chrome for privacy-sensitive activity; it offers no native fingerprint resistance. 2. Add the right extensions (Firefox or Brave only) uBlock Origin – Blocks fingerprinting scripts before they can run. (Note: Chrome’s Manifest V3 severely limited the full version; Firefox is required for maximum protection.) CanvasBlocker – Randomizes your canvas output whenever a site tries to read it. 3. Flip one powerful Firefox setting Type about:config in the address bar → search for privacy.resistFingerprinting → set it to true. This standardizes canvas, timezone, fonts, and other outputs so you blend in with everyone else. Takes 30 seconds and makes a measurable difference.

I am getting pop up after pop up using Firefox even though the pop up blocker is on. I am afraid that I need to use a different browser even though I have used Firefox for lots of years. I was especially annoyed that on more than one occasion a pop up happened when I was trying to get on my bank website. The pop up stated that access to my bank account had been blocked and I needed to call a phone number to have it unblocked.

This past Friday morning, May 29, I tried to access www.healingwell.com which I have always been able to do. But this time Firefox gave me a red screen with message: "Firefox blocked this page because it might try to trick you into installing programs that harm your browsing experience, for example, by changing your homepage or showing extra ads on sites you visit." And same message again over the weekend. But yesterday, Monday June 1, I was able to access that website, and all seemed normal. Why did Firefox give me that message on Friday, but not yesterday or today?

I'm blaming the latest Firefox update from a couple of days ago, since this problem only arose yesterday. Now cut off from reading and following news that I really want to receive.

This is what I get when trying to access links within a few of the websites that I regularly access for links to articles it posts:

The site ahead may contain harmful programs

Firefox blocked this page because it might try to trick you into installing programs that harm your browsing experience (for example, by changing your homepage or showing extra ads on sites you visit).

Advisory provided by Google Safe Browsing.

Scam Nowadays became regular .before foxfire browsers was top est saver legends, what happen nowadays not understandable very weak security privacy Is there some one discripe Us what what type of technical problem exsit!!!

The goal is to avoid Google. Copilot advise me to under Security, to uncheck the box "Block dangerous and deceptive content". Is that advisable - should I comply?

I've been receiving pop up messages on firefox saying something like "Torguard won't work with apple updates going forward". Is this genuine as apple say they don't use pop up messages.

I'm using a HTML file as a hypertext that catalogues a hard drive or folder. I want the file names to be clickable--to open the file, but but the file:/// href is blocked. What is the work around. All of this is local

I'm suddenly getting repeated/multiple Mozilla Firefox "Browser Alerts", "System Warnings," and "McAfee Critical Virus Alerts" that are wrong and dysfunctional. They pop up every few seconds. They contain "Remove virus now" and "quick scan" buttons, but these only take me to a bright red screen that says:

"Deceptive site ahead Firefox blocked this page because it may trick you into doing something dangerous like installing software or revealing personal information like passwords or credit cards."

These come even though I haven't tried to access any "deceptive sites." I have to x all of them out to clear my screen.

There's obviously a defect in your warning system. How do I stop this?