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I have been using a usrChrome.css in my profile to create multi-row tabs. (Why cant Mozilla see the need for this with 4K monitors?) The Oct update broke this and I cannot get FF to load the css file that has worked for more than a ywar.

Help please?

I've been on Thunderbird for almost 20 years and a Mozilla fan. Have evolved a fairly elaborate configuration of local (POP) email folders, rules, calendar, and accounts to manage & organize email activity, retention, archiving, etc. I've not had to deal with Profiles in previous upgrades and don't have much experience with it.

The recent Oct 1 push of Firefox & Thunderbird 131.0 releases took me by surprise. I was able to re-implement the previous Firefox profile to recover bookmarks, cookies, passwords, etc. However, when T-Bird warned that 131.0 was Beta & unsupported I took the suggestion to download & install the current supported release: 128.3.0 (I was on 128.2.3). Then hell came.

Once downloaded, installed & launched, Thunderbird 128.3 cautioned the new profile created with T-Bird 131.0 was incompatible with previous versions and that I should create a new one, which I did. Still could not get new T-Bird to recognize previous profile, so I tried uninstalling, downloading & reinstalling 128.3 multiple times, each time prompted to create a new profile before proceeding. I tried to follow the previous profile restoration process detailed on support forums & articles, but none seemed specifically relevant to my situation.

I located my profiles in the appdata roaming profile folder, including what I think are most recent based on size of mail folders. Can't determine whether I had just one or several in use due to the extent of my setup. Could really use some help & advice to: 1) Determine which profile was in most recent use prior to T-Bird upgrade. 2) Whether more than one profile was in use. 3) Re-implement the profile I was using on T-Bird 128.2.3 with my new 128.3.0

Regards & many thanks in advance, John C Houston

PS You'll ask why I would upgrade to 131.0 from 128.2.3. Answer: it was on auto-update and 131.0 is what was pushed. No more auto-updates for this guy!

I'm using Firefox Developer Edition 132.0b3 (64 bit) which I downloaded just a few days ago. Already, there's an update for it, to version 132.0b4. Each time I open Firefox, there's this popup that tells me that there's an update available and that I need to download it. I'm using Linux Mint 21. I've already visited about:config and changed app.update.silent to true, changed app.update.manual to true, and changed app.update.url.details and app.update.url.manual to fake hyperlinks. Despite doing this and despite restarting, I'm still prompted about the update available every single time I open Firefox. Could someone kindly tell the specific developer who implemented this annoying feature, to please provide an option for Users to not be bothered with such popup notifications?

ps: Why does this website have a white background and not allow extensions to change it to a dark background? I have Dark Reader extension installed, but it says that it cannot make changes to this website. Even uBlockOrigin is unable to. Please either allow extensions to change the background, or at least change the background color of this website to dark. It gets strenuous on the eyes to keep staring at a bright white backgrond.

I was playing video on my website and using threejs to render the video over web. It was working on every browser until i opened firefox. On firefox the video is not playing or stuttering at multiple positions and i dont knew why.

I read somewhere on reddit post of how to fix it and got to a solid solution of turning media.wmf.dxva.d3d11.enabled false. media.wmf.dxva.d3d11.enabled When i turn this false, in the config of Firefox. The video stuttering is fixed.

But as am a developer and want a solid solution so that no user can face this issue on my website while video is played. So is there any solid fix other than this through code only so that i don't have to ensure for every user to make this thing false. Can i do this through code? Is there any fix to this issue.

Thankyou in advance.

I have updated to the latest version of Thunderbird and it looks like all my account are gone. Black screen with the message "Conversations will be displayed here, use the contact list in the left panel to start the conversation"

But the left panel is blank I cannot select anything, also when I click "show Accounts" on the right top corner of the screen no information is presented.

There is something happening in the background because I can see when new email come in by a message at the bottom of the screen, however I cannot reach any of my email boxes

Any suggestions what to do ?

When trying to use Firefox on WSL I'm getting multiple issues. There is no option to minimize or fulscreen, I can't click on Menus that pop up, like when installing Addons or when clicking the Hamburger icon in the top right and the scrolling is choppy and jumping around. I have tried multiple Versions of Firefox (Standard, Nightly, ESR) and even tried it on debain (I was originally on ubuntu). Has anyone esle encountered similar issues? Chrome works perfectly fine, and Firefox on windows as well. Thanks for any help or tips!

Hi everyone!

I got a problem and cant find any solution on the internet. My Pc just stopped working and i ordered new parts and installed windows on it. Now i tried to get back all my data and programs from my old HDD, but i cannot find my calendar data.

I stored the calendar on the pc and not the internet (bad decision i guess)

Can someone help me? Does anyone know, where i can find a file or something, to get to my calendar data?

BR Robin

i have m2 mac book air with 15.1 Beta (24B5035e) OS when i try to download firefox for my laptop it always defaults to 64-bit version not arm64 version due to this i am facing multiple performance issues. I searched online but it seems that no one has my problem. I like to use firefox but i am not able to.

• I installed Thunderbird on pop-os linux (flatpack).
• Copied the *default-release directory from win to pop-os
• Imported *default-release directory
• The mail messages came over fine.
• The calendars from win appear on the left
• But none of the events or tasks from win appear on pop-os

I followed what steps I've found on line. I thought that if the mail came over, the other data should also be there. It appears at some of the calendar information made it, but not the events, etc.

I don't want to re-enter events manually. Is there something missing above?

I followed the instructions for transferring Thunderbird data from an old PC to a new one. ("Moving Thunderbird Data to a new Computer"). The only email messages that made the transfer were the ones I saved from Outlook Express that were imported into Thunderbird on the old PC in 2014. None of the emails existing in my two important account folders (set up in 2014) made the move. Those, of course, are the most important ones. Now what? PS: I am not an IT professional, just a small business owner that needs to transfer emails from the last couple of years to a new PC because the old one is obsolete. PPS: It was not possible to install Thunderbird on the new PC without creating an account - - the installation program refused to move forward to complete the installation without doing this step. If I understand the instructions in "Moving Thunderbird Data to a New Computer, I was not supposed to create any accounts during the installation process. However, that proved impossible - - the installer would not complete the process without doing this and there was no option to skip creating accounts. After I made my first attempt to install the "Thunderbird" folder (containing the Profile folder, etc.) on the new PC, and finding my most important email messages didn't make the trip with the rest of the Thunderbird folder, I tried deleting the account I had set up as a required step in the installation process in order to install TB on the new PC, then uninstalling Thunderbird, in order to clear the account that I had set up (one of the ones I am trying to transfer over). In other words, I tried to start over with installing Thunderbird on the new PC. However, when I downloaded and installed Thunderbird the second time on the new PC, it reinstalled the account I had deleted!

Hey, since yesterday ( 6/10/2024 ) my installation ( currently version 131.0 ) had a weird change. When opening the app it would create a new instance on my taskbar, while I thought unusual at the time it did also remove its ability to use the taskbar context menu, only having the pin to taskbar option.

Below are some images of this, the first two being the missing context menu from both Firefox installations, the original one is the one that has the frequents tab.

make firefox so it can sync the toolbars across networked computers. why does this not work. sync seems useless.

there is not button on taskbar to implement dark mode, but it is on several other firefox computers.

but it will not sync to toolbar for use, so dark mode cannot be clicked. pretty useless.

Everything was normal before the update. When I did the update, the menus changed, the bookmarks disappeared, the new tab key disappeared, how do I get it back to its original state?

i have a new Lenovo Yoga laptop. Previous laptop was a Yoga laptop. I could log in to Spotify with the previous laptop. I still can. I can't log in to Spotify on new laptop. I am being forced to log in with Microsoft Edge, which I hate! I read that I may need a Firefox add-on. What add-on? Help.

Hey there! System: Windows 10 x64, Firefox Nightly.

Problem: Out of the blue, when I start Firefox Nightly (I think 2-3 days ago), it just crashed with no extra info. I see the "window of the update process", it goes to the middle or to the end, immediately closes and doesn't bring up the Crash reporter. However! When I tried to run a Nightly Installer that I downloaded through Chrome, it quietly runs and then just opens up my browser no problem, profile and all. I checked and it seems to be the exact same .exe file (according to the Task Manager).

So in short: it breaks if I run it straight from my usual shortcut, or with .exe. But if I run the installer myself, the browser opens up fine.

However, the installer didn't bring any new updates that would fix the problem, I have this for 2-3 days now, I don't remember. I start working, I see I didn't fix it and run the installer again.

Any ideas on the fix? I would love to not lose my profile, settings and, if possible, tabs. I'll try disabling all the extensions after I post this, I don't think they contribute, though (seeing how the external Firefox Nightly Installer opens up my browser just fine).

Thanks in advance!