Firefox Community Forum

I have Firefox configured with auto-expanding vertical tabs. Sometimes, when the mouse cursor leaves the Firefox window through the same border where the tab bar is located, the tab bar expands and stays in that state until the cursor returns to the Firefox window. This is especially annoying with two displays; if the cursor hovers over the tab bar right before moving to the second display, the tab bar remains expanded, overlapping part of the browser content.

Some/All extensions don't work in build in PDF viewer. Example:

• Extension: DeepL: translate and write with AI

When: Not work when select text and hit translate.

• Extension: Dark Reader

When: Colors isn't inverted to darker tones.

Thank you, open to all help!

Hello Last year, I first saw the icons in the far right top corner of home page (red 'X' and other orange one) kept turning grey. Now for several months the entire top 'task bar' area of Firefox home page constantly turns grey, then back to regular color, back and forth, in the most aggravating way. I tried all suggestions: disabled hardware accelerations, disabled themes and extensions, cleared cache.... Still persists. I just noticed it may occur mostly when more than one tab is opened, even just two. Has anybody else encountered this? I use Firefox as my only browser-- on a Toshiba laptop. Thanks.

Running Win 11 and Firefox 14.1.0 both latest builds. When creating a new bookmark and saving it to the toolbar, the icon does not appear in the toolbar, although it is saved to the toolbar lists. https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-07-27-09-41-29-345609.png

I can no longer update or install extensions on my Firefox profile.

When I attempt to update, nothing happens. When I attempt to install a new extension, the Mozilla page states "Installation aborted because the add-on appears to be corrupt."

This appears to be a problem with my profile, because if I create a new profile, I can install extensions with it. However, I do not want to lose my existing extension settings or data.

About two day ago my U Tube started not showing the normal size player but it shows one similar to the picture in picture. The sound is working fine. This is happening all three of my WIN10 computers when I use Firefox. If I go to MS Edge or Opera the U Tubes run just fine.

I hate both of those browsers and have used Firefox for years but I use U Tube a lot and I need a fix.

I am thinking that the latest Firefox update was about the time this started happening but I am not sure.

I have a Windows 11 Pro PC. Every Sunday morning for years I have downloaded snapshots from gocomics.com to a folder named Sunday on my desktop. Currently, I have Firefox set to send all downloads to C:\Users\hight\Desktop\Sunday⁩.

Just this week Firefox has been sending those snapshots to C:\Users\hight\Desktop\Downloads and I can’t seem to get Firefox to send the snapshots to my Sunday folder. How could I do that?

Thanks! Sheridan

当我有时候用火狐浏览知乎(https://www.zhihu.com/)的网页时，计算机会突然在没有任何提示的情况下自行重启。我不知道任何可能的原因，但这似乎是从今年才开始的（我一直保持更新浏览器）

When I view Zhihu (https://www.zhihu.com/) with Firefox, my computer sometimes reboot suddenly without any notice. I don't know why but it seems to begin from this year (I always keep updating firefox)

I had been using firefox on my mac, but all of a sudden it stopped working. When I try to search something or type in a website I just get the dot moving back and forth on the tab and the page never loads. Safari is working fine though.

I've been unpinning my shortcuts on my homepage, and now there's no blank space to add a new one. I've restarted my Windows and clicked the settings again to create shortcuts, but I can't add a new one. Please help me solve this problem. Shortcuts made my work easy to access. Thank you

не работает гугл диск (да и почти все кроме почты, она как работала так и работает). в любом другом браузере работает. пробовала в безопасном режиме - ничего не меняется. переустановка на чистую тоже не помогла. скинуть кэш Днс соединения тоже.

Hi, the vertical bar on the far right of my page that is used for moving the page up or down is only just showing. Can I move the page very slightly to the left which will reveal mor of it?

Mon compte ne s'ouvre plus ....

Et après de longues heures, il n'est écrit qu'en anglais !

Voudriez-vous rectifier tout cela afin que je uisse ENFIN utiliser mon ordinateur !

Had accessed and used computer (Windows 11) today and all of a sudden all bookmarks disappeared as well as bookmarks toolbar. In addition I cannot bookmark any site. This is the 2nd time this has happened since upgrade to 141.0. Did a "refresh" on the first occasion but probably lost all my extensions - (I had not recorded what I had). Have had to revert my searches to Chrome but would prefer Firefox - which I have been using "trouble-free" for 20 years. Very disappointing.

Hi,

Most replayed parts on YouTube videos don't show up when I open a video in a new tab. The show up when I click on the video on the same tab.

I tried opening them in a private tab without all the installed extensions and the problem persists.

I guess it's just too simple for my needs. Without a field where I'm able to assign a recognizable name to an entry I'm in the position of having to memorize url's, instead of passwords. No gain. Frustrating!!!