Diễn đàn hỗ trợ Firefox

I had two profiles, was in the process of trying to learn how to use the 2nd profile (as seen in the link below), which I still have no answer for. Somehow, maybe I held down SHIFT for too long and clicked on something by accident, idk, but somehow, I ended up REFRESHING the 2nd profile, causing it to delete everything I had done with it, and it backed up the old profile onto my desktop in the process. I figured I could just simply delete the new profile folder it had created and put back my old profile in the profile folder, but now, Firefox will not open at all, saying "Your Firefox profile cannot be loaded. It may be missing or inaccessible." How do I get it to recognize the profile folders again? OMG, I'm using Microsoft Edge, please, get me out of this!

https://support.mozilla.org/en-US/questions/1479231

About a week ago, I started having these problems with FF 136.0 (64-bit) on Windows 10:

• Gmail (mail.google.com) became completely inaccessible
• Google Maps (maps.google.com) opens normally, but app icons stopped displaying correctly (as in attached screenshot)

Comments:

• Gmail and Google Maps are accessible normally on Chrome and Edge
• YouTube (which is another Google product) works fine on my FF
• Tried refreshing FF then tried clearing all cookies, caches, and browsing history, but made no improvement of any kind.

Any advice?

When a tab is opened or moved into a new window (image 2.png), the additional windows will disappear from the Windows taskbar after a few moments (image 3.png) and cannot be accessed via Alt+Tab, the only way to reach that window is via dragging the windows around or with the Firefox View tab.

duplicate of /questions/1495342 thread

I try to install Firefox directly from the Mozilla repository.

For that, I read the article "Install Firefox on Linux" and followed the install instructions in first chapter "Debian-based distributions" step-by-step. (article https://support.mozilla.org/en-US/kb/install-firefox-linux)

Unfortunately, with every attempt to install Firefox, the Firefox LinuxMint (Ubundu) package will be still installed. The command to priorise the Mozilla repository seems to have no influenace.

How can I prevent/avoid using the LinuxMint/Ubundu repository? I wan't to install and update Firefox direct from Mozilla source.

I'm using Linux Mint 22.1 Xia base (Ubuntu 24.04 noble)

Windows 11 23H2 FireFox 136.0.1

When clicking check for updates it firstly shows the rotating arrows icon for a long time and then says "Failed to Check for Updates"

I've completely reinstalled Firefox and this continues to happen

I do not have NordVPN or any other VPN installed

The behaviour is the same in troubleshoot mode

Hi.. can you help me.

My Whatsapp QR Code cannot appear after the Firefox update. The QR code is Blank.. i have tried many ways to get the QR Code to appear but fail. Please help. TTQ

Firefox is giving me an error on https://stemgateway.nasa.gov but the site is perfectly accessible using MS Edge and using Firefox on another computer. I uninstalled and reinstalled Firefox, changed the proxy settings to not use a proxy, tested a VPN, and changed DNS servers. Below is a picture of the error and of the certificate which seems to be present in Firefox already.

I am blocked from opening my Asus Router in Firefox for Mac. I added the router's address to every exception list I could find in Settings and still no luck. I can reach the router through Safari and through Firefox and Edge on a Windows 11 machine. I like my present Security settings on my Mac except for this annoyance. Can anyone suggest a workaround or a setting change that would fix this issue? Thanks in advance for your help.

I have this message after returning from nightly version to the stable one: ``` Using an older version of Firefox can corrupt bookmarks and browsing history already saved to an existing Firefox profile. To protect your information, create a new profile for this installation of Firefox. ```

Firefox 135.0 (64-bit) on Ubuntu 22.04.5. When trying to save any file (download, save image etc.) or trying to attach a file (in web-based gmail client or WhatsApp web client) nothing happens. Tried to refresh, switch off all extensions, clear download history - nothing helped. Chrome works on the same machine like a charm...

Do you have any suggestions?

Thank you

Since the last update, Firefox is not working properly. The search engine is completely dead, not working at all, and anything related to Google, like Gmail, never opens. I've tried several things, but nothing works.

Suddenly i do not have access to a website and only this. the domain is wetranfer.com Actually i do not have access with any browser. not only mozilla firefox I use the default Microsoft defender but i can't find anything in firewall that blocks access to this site. Any help?

Recently I've had the Un-welcome experience of Scripts triggered on YouTube, which Over-ride my Installed extensions to Firefox.

I've had YouTube, somehow Disable extensions and refresh the webpage... Without my concent or even an option for concent!

I've even blocked the popup window, which triggers the script which performs this action within another extension... and within 7-10 days Youtube has by passed the bypass that i've employed...

In my opinion a web-browser which allowes for extensions to be installed and run... should Block any and All scripts which try to disable extensions!

I seriously hope this can be looked into asap... or someone in the community has a work around, as my work around (blocking hte window which triggres the script, which disables the extension....) was by-passed within 7-10 days...

I used to think myself a compettent net user, but i'm aged out atm... still if i'm unable to prevent this sh*t and manipulation within FireFox, I doubt the average user or the layman will have a chance in hell of being secure and keeping their chosen extensions running...

This needs looking into ASAP!

Good day, I have Firefox 138.0.4 running on Windowx 11 24H2. PC details as follows: CPU = Ryzen 5 2400G RAM = 32GB GPU = RTX 3060Ti 8GB Connection is 50/25Mbps fibre connection

My issue is that when watching F1 from the following site: https://f1tv.formula1.com/, after some time (it differs in how long it takes to manifest), the stream starts to stutter. Note, it is NOT buffering, it is like the stream gets "stuck" or freezes for an instant then continues. The "freeze" then becomes more frequent and sometimes even lasts for about 2 seconds before resuming. The most important fact about all this is that this does NOT happen when using Google Chrome, hence my suspicion that it is somehow related to Firefox specifically. Does anyone have any idea what is causing this and/or how to fix it, please?

I recently downloaded Firefox and would like to use it as my primary web browser (M1 14" Macbook Pro). But my Google calendar web site is not showing any colors, making it hard to use. On my other browsers (Brave, Safari, Edge) it works fine . See screen shots below from Firefox, Safari, Brave. I have tried re-booting Firefox, the computer, reverting the Firefox theme back to basics etc., and searching on line for a solution, but I can't find anything. So far all other websites are working OK, except for 1 other that has partially the same problem. If it can't be fixed I'll stop using Firefox, which I otherwise like.

Thanks for any help.

So Firefox automatically updated to version 136.0 and now Disney Hotstar (hotstar.com) website does not work. It shows the following error: "Something went wrong. Don't worry our best minds are on it. Please use the skip option if available or try again later." (see screenshot) There is no skip option.

I downgraded to version 135.0.1 and everything works fine. Hotstar website also works fine in other browsers. But soon the automatic update kicks in and with version 136.0 Disney Hotstar does not work at all.

Firefox version: 136.0 64-bit for Windows OS: Windows 11 24H2 Home Edition (build 26100.3194)

Thank you in advance :)

Hi folks

I have a particularly infuriating problem. A few weeks back, Firefox stopped displaying my usernames and passwords whenever I wanted to log into a site. This coincided with my installing BitDefender, although I don't know why.

Through googling I eventually realised I could go into about:config to fix this. signon.rememberSignons displays as false, when I turn it to true it fixes the issue.

But here is the problem I can't solve. Everytime I restart firefox or my PC / Mac (I am using both, with a syncronised account on both windows and MacOS) it sets signon.rememberSignons to false AGAIN. Which means every single time I browse I have to go into about:config and fix this. Maddening.

Please can you help?

The latest firefox browser for windows desktop pc broke the ability to log in to at&t (also called yahoo) email. The email works fine on microsoft edge and chrome. It worked fine on firefox until the last update.

It looks like some sites are not working properly, two examples I can give are google sheets&docs, in the attached image you can see my sheets are not being shown, note that if I directly access a sheet's link it does open.

The second example is some websites with media players just load infinitely (YouTube works).

Also added network tab non 200 status code requests images.

Things I've tried:

• Disabled "network.dns.disablePrefetch".
• Tried troubleshoot mode(meaning those requests that were blocked by ublock are not the problem).
• Deleted history including cookies.
• Private Browsing.
• User Agent masking
• Reinstalling

I have been getting asked to update my firefox for the past 2 weeks now. Everytime, it asks me to update my firefox. I update it, and then when I quit firefox (restart computer) and re enter, it asks me to enter my admin details to be able to install a helper tool to finish installation.

Attached is a video of that happening. Essentially, I have downloaded the latest version directly off of mozilla website, but it continously asks me to update & install helper tool.

When credentials are entered, it doesn't do anything. When I press cancel, the application does not respond and need to force quit. Either way, I cannot access firefox everytime it asks me for an update.

Any help would be appreciated.

Link is to my dropbox of video since I cannot upload it to the post: https://www.dropbox.com/scl/fi/2ihkfij4zk5m74g1rj97l/Mozilla-Firefox-helper-tool-community-post.mov?rlkey=t7hreld7va3bd25putv562hca&dl=0