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When using vertical tabs layout with "expand sidebar on hover" setting enabled, sidebar scrolls up with each expansion, so that when hovering over a certain tab of collapsed sidebar, another open tab is under the mouse pointer when expanded. For additional details please refer to the attached video.

Steps to reproduce: 1. Enable vertical tabs layout with "expand sidebar on hover" setting 2. Open a lot of tabs 3. Hover over a certain tab

Observed result: The sidebar expands with mouse over another tab and the list of tabs scrolled up.

Expected result: The sidebar expands and mouse pointer is hovering over the same tab after expansion from collapsed state.

I am having issues where pages I open will show it continuously opening (Page load status on tab keeps bouncing even when page is loaded) some page I need to try a couple times to load content. This seems to have started when I upgraded my Mac to OS 2.6. Currently I do not have any extensions or themes to troubleshoot. I did try in troubleshooting mode and everything worked fine, but all the documentation points to themes. I have tried clearing cache, quitting, restarting my computer it always comes back. Is there anything I can do to stop this otherwise all my work on Firefox will have to be moved elsewhere. Below the guess about my OS it says my OS is 10.15 which is incorrect it is Tahoe 26.3. I am not sure why this would come up as a 2019 OS.

Best,

Gina

I've followed all recommendations to fix that, but nothing works. Should I remove the browser, boot up, and download it again? Remove all my personal settings, etc? Also, I download my emails, I erase the unwanted emails, and suddenly, many copies of my previously erased emails show up after I get a new email. This happens with Gmail and Yahoo Mail. Please help me, this is driving me crazy and taking up my time. Gratefully, have a swell day! Isis

While testing the new profiles option with Firefox after loading containers while having Surf-shark VPN on my computer stop accessing websites. The conflict was resolved by reloading surf shark and then while attempting to remove new profiles not being used I deleted the original homepage/profile. Over 10yrs of bookmarks, passwords, and numerous pieces of data have been lost. I need that original Firefox homepage user account for my computer restored.

I use a Lenovo desktop computer that I have used along with the Firefox browser for about 3 years and never had any problems until now. For the past two days it takes up to a couple of minutes to for the Firefox browser to open a page. While the page is loading, I get at the bottom right corner of the screen "performing a TLS handshake." I vaguely understand this terminology but am not an expert on the subject. This "handshake" repeatedly occurs with all sites that I open daily with the Firefox browser. The pages usually open within a couple of seconds. Now it takes minutes and sometimes doesn't open at all. I have difficulty opening even the Firefox home page and when it finally opens, it is incomplete? Do you have any suggestions that might help me?

I must add that the internet connection from my provider, Eastlink, located in Nova Scotia, Canada, is by Ookla tests very slow, ranging from 40 to 55bps instead of the regular150bps or higher. I don't know if the problem is with my desktop or with the provider and the provider has not responded to my telephone request with any information that explain where is the source of the slow internet speed problem.

My email address is [edited email from community support forum]

Gerald Comeau

Sometimes, I cannot click on an option on a form (on my up-to-date Firefox, on Windows 11 - help, please! Its usually only when the options are shown as little buttons or squares to tick off. Its not my mouse because it works for the usual mouse works.

I can't enter the tick/click necessary on this form to say "Email me when someone answers this thread" Cheers, Carol

Hi everyone,

I’ve been testing a simple online click counter to track clicks and sometimes test my clicking speed. The tool works fine most of the time, but in Firefox I noticed that after refreshing the page the counter occasionally keeps the previous number instead of resetting to 0.

This is the tool I’m testing: https://thetallycounter.com/

I’m not sure if it’s related to Firefox caching or local storage behavior. Has anyone experienced something similar with web tools that store values in the browser?

Would clearing cache or disabling something fix it, or could it be a Firefox-specific issue?

Thanks!

Due to an internet outage, I got forcibly signed out of my Firefox account. I signed back in, but all my login info and passwords are just gone. I still have my browser history, and I'm even still logged in to some of my accounts, so I know some of my cookies and cache are intact.

I am using Firefox on Windows 11, in the process of switching from Chrome.

I run Cockpit (https://cockpit-project.org/) on web servers that I manage, and when I log into it on Firefox the screen flickers constantly, making it unusable.

There is no issue with any other web sites I have visited, and I can still use Cockpit when in Chrome. So ay suggestions on how to troubleshoot and resolve the issue with Cockpit and Firefox?

Second time asking for help: Firefox "hangs" for 30-60 seconds the first time I open it on my MacBook Pro. Am running Firefox 148.0 (aarch64) on Mac OS Tahoe 26.3.1. This has been going on for three months. Have tried uninstalling Firefox and using AppZap to erase my Mozilla profile from the Mac -- rebooting the Mac -- and re-downloading a fresh copy of Firefox. I shut the Mac down for about an hour, rebooted, and Firefox launched right away. But the next time I launched Firefox on reboot, it "hung" again. Spinning beach ball for about 45 seconds before it then opened its default page at open. I do not run a VPN, and disabled some Safe Browsing "features" of Intego Virus Barrier.I tried to eliminate any other third-party extensions from my Firefox that might cause the delay. Am attaching an image of the extensions Firefox currently uses on the Mac. I absolutely <loathe> Safari, but can't have my Mac use Firefox as a default browser if it "hangs" on first launch. One last thing. Early on in the process, I tried deleting my Mozilla Firefox User Profile, but Firefox refused to start because it couldn't find a profile to launch with. So did not go there on this last attemt. Thanks in advance.

Bonjour,

depuis le début de la semaine lorsque j'ouvre firefox mes marques pages de ma barre personnelle sont disparu et ne sont pas non plus dans l'historique de récupération. il faut que je "répare firefox" pour qu'ils reviennent. mais le problème revient. parfois plusieurs fois par jour. Je n'ai jamais rencontré ce problème auparavant. J'ai un message de firefox qui m'indique que firefox est ouvert ailleurs. mais je ne sai pas où. merci de bien vouloir m'indiquer ce que je dois faire

господа,здравствуйте,помогите пожалуйста,любое видео разворачиваю на полный экран на мониторе HDR,а оно тусклое,никак не могу победить эту проблему,я бы отказался от всех остальные браузеров,но вот это единственное что меня останавливает

I’m currently facing a very frustrating issue with Firefox. I have been using Firefox for many years, and it is my favorite and most comfortable web browser for my day-to-day work. I rely on it heavily as all my bookmarks and other important details are saved there.

However, over the past few weeks, Firefox has been crashing more than 10 times a day. I have already tried all the troubleshooting steps available in the forums and through AI support, but none of them have resolved the issue. I also tried installing and using the Firefox Beta version, but the problem still persists.

In our environment, other users and devices are not experiencing this issue, so it does not appear to be related to internal firewall or antivirus restrictions.

Could you please help me troubleshoot this issue? I am attaching the error screen that appears after the crash along with the crash report for you

I am using Firefox 148.0 and Mac Tahoe 26.3.1.

When I click on a link in an email, two Firefox windows open. The window to the link opens, along with my homepage window, so two windows are opening in Firefox instead of just the one containing the link address. This is happening when using Thunderbird. However, I have tested this using Apple Mail and Outlook, and the same problem occurs. This problem happens whether I have Firefox already open or not. I have opened the email links with Firefox running in Troubleshoot / Safe mode and the problem persists. I have also cleared Firefox cache / site data / history and the problem concerning email links is still there. This problem arose after installing Firefox 148.0.

Anyone able to help solve this problem? Thank you for taking the time to read this report.

I need a fucking no on this setting, not a "not now". I do not want the browser to open on startup. But when I do want the browser open, there is the browser asking me again like an ex that wont get the hint.

BT yesterday misspelt my email address with an additional 'h'. Although the original address has now been restored, firefox will no longer accept the original version (displaking a red sticker saying 'email address or user name misspelt') and I can only read my emails using on my Windows laptop using Microsoft Chrome. As I dislike having anything to do with google, please can someone explain how to resolve this problem (by removing cookies or whatever else).

Many thanks,

Oliver Crichton

...and getting this message.....Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.