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On all sites where I need to login with my work account I get a tab crash when the browser redirects to https://login.microsoftonline.com/ac4b0eb0-811e-4ab0-acca-8a87079290dc/oauth2/v2.0/authorize?response_type=id_token&scope=user.read......

This is a recent failure (this week), that occured without any changes on my own account to Firefox developer version 121.0b2(64-bits)

I had to install google chrome to overcome this problem. Chrome has no issues with microsoft authentication.

Please solve as soon as possible, otherwise I will be switching to another browser.

Hi, Mozilla team I hope that you have a great day, straight to the point, my UI sometimes crashes or some components glitch or don't even work as it has to This is a video below slowed(I couldn't upload the video).

I am trying to migrate from a very old version of Firefox (v. 55) to the current one, but there is an app that is more helpful to me that all the other features combined. That is the "Tab Grouping" app that will not run in any version of FF higher than v. 55.

In my work, which often includes a tremendous amount of research, I need to be able to quickly go from one group of tabs to another. If I had to open all these sites manually, that would take the better part of the day and frankly I don't have near the mental capacity to remember the tremendous number of tabs. I have had a couple replies (Thanks!) to this question sometime back, but unfortunately none were even close in performance.

So, can anyone direct me to an app that will allow very quick movement from different sets of windows/tab groups (please see screen shots below)? Is there anyway that I can get this app to work in Legacy mode? I have several other old apps that work perfectly well in this mode.

Hi Mozilla Suport teams, i am currently using the mozilla for the developer version and the app runs flawlessly, and i love it. But i have some suggestion for the developer at mozilla to make a tab that can group the tab into a fresh tab like the google chrome has, and since i open so many tab in this browser, i would absolutely love it where the feature of grouping tab is available for me, so i can group them in name and leave it there, rahter than open up more than 10+ tabs in a window. Thank you so much

error text - " Firefox cannot verify application "

when I enter email and password on cocofax.net login, scrwen just sits

How do I import the firefox passwords I saved as csv file from firefox into firefox. I am not importing from a different browser which is the only option offered. I'm importing from the newly created csv file as instructed by firefox.

I had ~500 saved logins on Firefox prior to it updating to version 121.0 - now I have 15.

Firefox Lockwise app on iPhone still shows all my saved passwords.

How do I get these back and why have you deleted them?

Hello, I am a first-time user of Mozilla and need help using your browser for college, please. The college I attend uses the browser, and I am not familiar with it.

Thank you, Christopher

Hi, I've been using Firefox on all my devices for YEARS without any issues. However, as of recently, I had moved into a new apartment, and with that came a new internet connection, which was very slow since the beginning, but usable.

At first I had assumed that Firefox on my PC was loading websites more slowly because of my poor internet, which was partly the case - however, my laptop and Android phone were on the same network as the PC and were both much faster. So I assumed it had something to do with the differences between WiFi and Ethernet connections - the PC was plugged into the latter while the laptop and phone were using WiFi.

But then I noticed that Firefox was the only program with lacking speeds. Spotify loads video podcasts with no problem, Steam downloads are relatively fast (as much as my network allows), only Firefox took MINUTES to load a simple web site. For example, I tried opening Reddit on my PC to write this post, gave up, and am now writing it on my phone. The Reddit website is still loading on my PC as we speak.

I honestly don't know what could be causing this issue. I checked Task Manager, and Firefox isn't using any more resources than it normally would. I am also using the latest version, I just checked.

Any ideas or fixes? Even diagnosing the problem would go a long way.

After the last couple of updates Firefox will not wrap words in view source screen(CTRL+U). This makes the info very difficult to read as most lines of code run off the screen. How do fix this? Thanks.

Hello, I want your help! Because I want to change the appearance of checkboxes to toggles without affecting the other checkboxes (like rounded checkboxes) using userChrome.css in Firefox.

I'm not friend with CSS, because I don't know much about programming. So, please write me a correct CSS code in a comment.

The attached screenshot will explain my demands:

Often times when I open a new tab, I get a dot that goes back and forth and will not open the tab. This seems to happen if I don't use Firefox for a few minutes. It's like its trying to open but can't.

I recently downloaded Tree Style Tab. I still see the horizontal tab bar. I would like to hide it. However, I have tried just about every answer I could find on Mozilla, Google, Reddit, and any other websites that offered solutions. Nothing has worked since the last update. This includes the "type in about:config, toggle to true, open profile folder, create userChrome.css file, copy and paste xyz code, save, and restart Firefox" route.

Any help would be greatly appreciated!

I read this article on enabling/disabling hardware acceleration and I am missing the checkbox to toggle it. I am wondering if this is a firefox bug or if something about my hardware setup is unsupported. I'm using a 1080ti running on the most recent drivers, 546.33. Windows 10 Education version 22H2

Long time Firefox user. Had automatic update to version 121.0 on 12/19. Shut down that night. Next morning (12/20) Firefox opened as if it was a totally new installation - no bookmarks, extensions, etc. Downloaded 121.0 64 bit version; uninstalled Firefox; reinstalled it with downloaded version - same issue. Replaced profile with backup copy from 12/17. Firefox started properly with all bookmarks, extensions and other settings.

Shut down on 12/20. When computer was started this morning (12/21) and Firefox opened - same issue - presented with brand new never before opened Firefox. Shut down Firefox, copied over 12/17 profile, restarted and all bookmarks, etc. were there. Restarted Firefox using about:restartrequired and everything was still as expected.

Windows 10 is up-to-date. No updates found for extensions.

Thoughts on what might be corrupting the profile or what steps I can take? I have 25 enabled extensions. Since a restart didn't revert me to the brand new never opened presentation, activating them one at a time doesn't seem to be a worthwhile approach.