Firefox Community Forum

Hi, I've seen others ask this same question in archived posts with no proper answer.

How do I select all tabs to be imported from a synced machine? I have the list on my sidebar, I can import or close one tab at a time, but there is no menu available to select them all (there are many). Right-clicking on the device name etc. does nothing.

Windows 11, Firefox 141.0

Many thanks for any help!

Since this week's update of Firefox Developer edition when the browser is restarted tabs do not load until I reset the browser.

I suspect an add-on but have not been able to determine which one.

This is happening on multiple (3) physical computers.

I just started a new work role and haven't been able to find the time to troubleshooting of the issue myself.

This has been very disrupting and stressful.

When I try to run firefox 141.0 (Linux x64) I get:

libxul.so: undefined symbol: gdk_wayland_device_get_wl_seat Couldn't load XPCOM.

Is there a way to fix this?

I'm using Slackware 14.2.

When attempting to login to ssa.gov (probably a redirect to login.gov (?)) I get the following in a new tab (with url https://secure.ssa.gov/RIL/SiView.action)

Bad Request

Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

I have Firefox for Linux Mint v136.0.2

I usually browse with Strict but removed for this website, made now difference :-\

Hi. News videos from www.bbc.com won't play. When I ask the BBC website to play a video, I get a blank area of my screen, with a play button. Clicking the button makes it go away, leaving me with just the blank area of the screen. Videos from youtube, movie trailers, etc play fine - it's just videos from a few sites (such as BBC) that yield nothing. I have autoplay videos disabled by default, but: I'm not trying to have the website autoplay; The setting doesn't affect other websites; and there's no way to disable autoplay for the website I'm on (no way I can find, at least).

I have a Scotiabank account. Its login name is my CC or rather debit card number. I got a new card with a new number. FF will not let me change the old one to the new one. So I went through Safari and entered the new one by hand, which allowed me to do my online banking a day or two ago.

I want to use FF and to change the number, because FF is my default browser and I like it.

thanks, Shelly Errington [email address]

Roughly every 2 weeks I backup important files to a external hard drive.

One of the things I always backup is my Firefox profile. I have been doing this for years without any problems.

I 7zip my profile and copy it to the hard drive.

I tried to do this yesterday (July 25 2025), and was getting access denied messages for files in the profile. So I tried to simply copy the profile. Same thing access denied.

I cleared the history, used wise disk cleaner, rebooted my machine and tried again. Same thing access denied when trying to backup or copy the profile.

I am assuming that this is happening since 141 because I updated Firefox since the last time I backed up my profile, and never had a problem previously.

Could anyone have an idea what the problem is? Thank you for your time.

is anyone else having issues with this POS browser shutting down unexpectedly FREQUENTLY for NO reason. I thought the first dozen or so times it was updates, but only once or twice there was mention of new feature. I am SO over it and think Chrome with it's risks IS the smarter move

Even though my settings in Firefox are set to restore open tabs when restarting, and Firefox is my default browser, I was unable to restore my open tabs when my Firefox browser just closed on me. I went up to the menu > History > Recently closed tabs > Reopen all tabs and nothing happened. Is there anything else I can do? Thanks for your help!

Can’t login to EFTPS.gov using Firefox and Login.gov. I receive an SSL error message.

Hi, I want to make a simple extension for Firefox that auto toggles vertical tab based on the aspect ratio of the Firefox window. I found `sidebar.verticalTabs` in about:config that toggles vertical tabs, but a simple googling tells me that it is not possible for web extension to modify about:config values. Is there any other API that toggle vertical tabs? Thanks!

While using Facebook, I changed some Meta setting to block ads, then unblocked it. After this, Firefox does not show any Facebook info. Switching to Edge, everything shows as normal. Can't see any setting on the Firefox settings page that controls this.

Hello, we were just assigned brand new laptops at work. I had IT install Firefox for me, and I'm attempting to sync my firefox account with my previous one so that I can load all the open tabs I had on my previous laptop. I appeared to have signed into my account just fine on the Mozilla pages, but when I go to the hamburger menu in the top right of the browser, I see no icon for my profile, nor any option for "sign in and sync" like the help guides are instructing me to click on. I can't pull up anything related to syncing in the settings, either. What exactly am I missing? Any help is appreciated, thank you!