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  • Browser security

How to stop annoying pop ups?

How do I stop pup ups with several different warnings. At the top of ALL popups say Mozilla Firefox . I clicked DISMISS, then another one will pop up. 1.) Red shield wit… (read more)

How do I stop pup ups with several different warnings. At the top of ALL popups say Mozilla Firefox . I clicked DISMISS, then another one will pop up. 1.) Red shield with the word Warning! Click here to secure device! anti virus notification. 2.) Red and black shield say Virus found. 3.) Blue Windows symbol with a the yellow triangle and !, Click here to remove it 4.) red setting wheel, Trojan virus detected, Scan and delete your system.

Please help

Open 1 1 33

create exceptions to pop-up blocking on firefox for android?

You know how you can block pop-ups and third-party redirects on firefox desktop, then make a list of exceptions? Is there a way to do this on firefox for android as well?… (read more)

You know how you can block pop-ups and third-party redirects on firefox desktop, then make a list of exceptions? Is there a way to do this on firefox for android as well? This screen keeps popping up and its driving me mad lol.

Settings HTTPS-Only Mode: Enable in all tabs DNS Over HTTPS: Default Protection Enhanced Tracking Protection: Standard Firefox Version: 149.0.2 Device: Samsung SM-A556E OS: Android 16

Extensions: Adguard Adblocker, Decentraleyes, and uBlock Origin

Open 1 48

Question - new Firefox built in VPN

Regarding the new built in Firefox VPN. If I have Tabs open and Enable the VPN on a New Tab, does it then affect all previously opened Tabs, only the New Tab, only the Ne… (read more)

Regarding the new built in Firefox VPN. If I have Tabs open and Enable the VPN on a New Tab, does it then affect all previously opened Tabs, only the New Tab, only the New Tab and Tabs opened after that initial New Tab, or ? Also, is there a Meter Display or similar so I know how much of the 50GB VPN allotment has been used or is remaining ? Thank you, very kindly ...-- J V

Solved 4 109

how do I stop pop-ups

I need help with annoying pop-ups. I followed instructing. It only say allow, not block, when I go to settings, security & privacy, checked block pop-ups and third pa… (read more)

I need help with annoying pop-ups. I followed instructing. It only say allow, not block, when I go to settings, security & privacy, checked block pop-ups and third party redirects.

Open 18

Firefox Security?

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… (read more)

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."

Open 3 30

while on fox browser I can't update my PC

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 dis… (read more)

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!!!

Open 1 15

My iPhone screen is frozen while using Firefox due to a pop up scam.

My iPhone full screen is frozen in the Firefox app due to a pop up scam. I've tried a forced restart as well as running airplane mode to be able to delete the URL. But, t… (read more)

My iPhone full screen is frozen in the Firefox app due to a pop up scam. I've tried a forced restart as well as running airplane mode to be able to delete the URL. But, this hack is different from the couple of other times this has happened to me. The URL is also frozen. After a forced restart the URL is accessible for just a millisecond before it changes to "viruvpnapp.com" and freezes. There isn't any time to delete it before it freezes. I've also uninstalled and reinstalled the Firefox app. I've also closed the app and then shut off Wi-Fi and cellular and then reopened the app thinking that the pop up would not be able to connect. But, it was still there. Any suggestions?

Open 30

firefox veryfing my traffic recently, problem it shows my ip..i mean what if i'm live while browsing...that is not normal..

so...firefox veryfing my traffic recently..maybe to see if i'm human? idk but problem is when i go to a new tab it shows my ip...and i would like that not to happend...i … (read more)

so...firefox veryfing my traffic recently..maybe to see if i'm human? idk but problem is when i go to a new tab it shows my ip...and i would like that not to happend...i mean what if i'm live while browsing...that is not normal..wanna verify my traffic okay..make a toggleable eye button where i can see or not see my ip so that if am browsing live it doesn't cause my ip to be public?

Open 1 17

PKCS11 security device support no longer working

Relevant to Firefox running on Ubuntu 22.04 Linux and an x86_64 platform. Until roughly 2/2026, it was possible to load a security device by opening Settings, Privacy and… (read more)

Relevant to Firefox running on Ubuntu 22.04 Linux and an x86_64 platform.

Until roughly 2/2026, it was possible to load a security device by opening Settings, Privacy and Security, Security Devices, then browsing to a shared pkcs11 shared library, in my case /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so, and clicking Load. The shared library would load and would be loaded subsequently whenever Firefox was started. For roughly the last two months, Firefox would pop up an error saying it was not possible to load the security device, but it would actually be loaded and it;s functionality would be available for the current session. For the last two weeks, the library would load without error, but only for the current session. Starting on 4/13/2026, some functions in opensc-pkcs11.so work, but not others. For example, it is no longer possible to connect to MS Teams web interface.

Open 20

getting warning message from Firefox ESR about viruses

bold text I am getting a flood of messages about viruses from McAfee and Monzilla Firefox ESR. Not sure if these are real or a scam to click on a link. Need some help i… (read more)

bold text I am getting a flood of messages about viruses from McAfee and Monzilla Firefox ESR. Not sure if these are real or a scam to click on a link. Need some help in how to stop messages or find out if my laptop is infected with viruses.

Open 1 21

Make firefox users with random or non-unique fingerprints.

Some users are abandoning Firefox because of the difficulty of protecting against Firefox fingerprinting. Therefore, I strongly recommend adding an option in the settings… (read more)

Some users are abandoning Firefox because of the difficulty of protecting against Firefox fingerprinting. Therefore, I strongly recommend adding an option in the settings that allows the digital fingerprints to be made random, or at least, if it is difficult, to make the fingerprints indistinguishable. This will help improve Firefox’s reputation and the privacy of its users. Love you all 3:

Open 3 20

Device Bound Session Credentials Google has made Device Bound Session Credentials (DBSC) generally available to all Windows users of its Chrome web browser, Is Firefox working on a solution, as Firefox is also affected by STORM.x

Device Bound Session Credentials Google has made Device Bound Session Credentials (DBSC) generally available to all Windows users of its Chrome web browser. What is FIREF… (read more)

Device Bound Session Credentials

Google has made Device Bound Session Credentials (DBSC) generally available to all Windows users of its Chrome web browser.

What is FIREFOX doing to defend us from session cookie stealing malware (STORM)?

Open 1 46

Project Glasswing

Hi, Microsoft and Google are part of Anthropic's Project Glasswing but Mozilla is not. I am concerned about Firefox security if Mozilla in not being included. What is yo… (read more)

Hi,

Microsoft and Google are part of Anthropic's Project Glasswing but Mozilla is not. I am concerned about Firefox security if Mozilla in not being included. What is your plan to participate? Do I need to switch browsers in the meantime? Please advise. Thanks.

Cheers

Solved 2 45

New Firefox installation blocks access to local files, how do I restore access?

I recently switched operating systems from W11 to Linux (Zorin), and installed a new copy of Firefox. I rely on local web pages I have written for some of my work, but th… (read more)

I recently switched operating systems from W11 to Linux (Zorin), and installed a new copy of Firefox. I rely on local web pages I have written for some of my work, but the new copy of Firefox does not find the file. For example, when accessing an image, e.g., file:///magrathea/dmpase/home/index/coastal24.png, Firefox gives the message:

File not found Firefox can’t connect to the server at local file What can you do about it? Check to make sure you’ve typed the website address correctly.

The address is correct, that is, the file resides at: /magrathea/dmpase/home/index/coastal24.png and the user does have permissions to read the file. I've tried adding up to five '/' characters to the beginning, and I have turned off all of my installed add-ons, but without success.

An apparently related problem is that double clicking on a '.htm' file also changes the address, for example, from '/home/dmpase/Desktop/index.htm' to 'file:///run/user/1000/doc/f07a8988/index.htm'

And finally, the "Brave" browser is able to read the files with no errors.

How do I fix this for Firefox?

Open 41