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After updating firefox (to version 113.0.2 (64-bit)), I discovered that the add-on "Privacy Badger" I was using was off. I tried to get anew the add-on but received the above message.

Any help would be very welcome.

The Firefox stable desktop taskbar shortcut issue unresolved for many months. Every time clicking on the Firefox taskbar/start shortcut is non responsive or it gives the error class not registered. Firefox nighly/developer do not have this issue. Fujitsu laptop, Widows 11 lates upgrades. Please fix.

After 30 years of using Thunderbird with no problems, yesterday opened my account (with my wife's email also) and everything was gone. I managed to get my stuff back but today I worked on my wife's and, while I got her email address to appear in my account I can't get anything else - folders, emails, saved emails, etc. Obviously mine was hidden somewhere because I recovered it pretty readily but I'm having no luck with my wife's. The only things of hers that appear are her inbox, trash, and outbox. I'm delaying telling her because she will be justifiably extremely upset. HELP!

Hi team,

I tried switching over to the monthly release branch however none of my addons work.

Is there some major incompatibility introduced (aka WebExtensions)? I can not find any documentation anywhere as to what changed or why an extension would not work with 129+.

Also the release notes do not mention that 136 changes the Profile format, requiring a redownload of all messages from the server and therefore reindexing. This took several hours, only to find the addons don't work. Downgrading Thunderbird gives a profile error, and requires the `--allow-downgrade`switch to restore functionality. There should be a warning in the release notes regarding the one-way nature of the upgrade.

Thanks!

Dear Firefox Support, My issue is with the browser I use 136.0.1 (64-bit). Select Help menu (Restart to update Firefox) I've preformed this task several times so far and I keep getting the something over as I click on Help menu. I restart the browser again however it is the same thing "Restart" again. What is my next step here?

Thank you, Dave 18 March 2025

I just installed Thunderbird and it opened with the Welcome to Thunderbird (donation request) page.

BUT I can't DO anything in the app like setup an email address or access settings because the hamburger menu button does nothing when I click it. I can't click anything that will let me actually do anything. It's essentially a brick out of the box.

Could my antivirus or firewall perhaps be interfering with it? Seems unlikely since the problem is within the app itself and not a connectivity issue but I can't think of anything else and there aren't support articles on this fundamental problem.

I'm running Windows 11 with all updates. I tried restarting the app but no change. Any idea what's going on and how to fix it? Thanks.

Help: Unable to copy my email lists when using export function to migrate profile to new computer.

It is March 17, 2025. I am using Thunderbird 128.8.0ESR (64bit) on Windows 11 Home (version 24H2) on BOTH COMPUTERS! When I use the Thunderbird Tools Export function from my old Window 11 computer to my new Windows 11 computer it copies all my email and folders correctly. I can send and receive email fine on the new computer. However, it fails to copy over my Thunderbird address book and my email lists (the address book and lists are blank). I tried multiple times. My profile is 76GB large. So I tried navigating to C:/Users/Profiles/app data/thunderbird/roaming/profiles/profile name to perform the move manually. Still no luck.

About 2 years ago. Thunderbird versions had the ability to export address books separately. That option is no longer available. So if you know of a way to export my lists of addresses (each lists is a thousand email addresses) That would also solve the problem. -Eileen

I have installed Thunderbird on a new Lenovo PC using the latest version of Windows. I have copied the settings manually and correctly from a laptop in to the settings for the accounts on the PC. Thunderbird does not give any errors for collection of email though none are appearing in the inbox. There are messages on the server waiting to be collected.

There is a timeout on the SMTP when trying to send messages so no messages are sent.

I have checked all the settings and they are as follows: POP account port 110 smtp port 587 Using START and normal password authentication for both.

I have tried numerous other permutations of configurations as well as restarting Thunderbird after every change. As I mention these are the identical settings used on the laptops which the PC's are replacing. The PC is connected to the internet via ethernet cable and the internet functions fine.

Any ideas out there or anyone having had a similar experience and found a resolution?

Hello, today I could not launch Firefox on my Mac. Because this is a corporate machine from Kyndryl, I downloaded from Kyndryl App Store, I have rebooted the systems, I have updated iOS to last version, but still haven't solved the issue. This is the situation: Firefox is installed, I click to launch it, I am asked to authenticate with MFA I authenticate correctly, and Firefox just sits at the dock bar jumping, then stops jumping, and nothing else happens. I repeated the process several times, made several reboots, nothing changed. Can you suggest a solution?

thorsak Today at 12:21 PM

thorsak 2/23/25, 2:49 PM

February 23, 2025

Hi: I've just recently installed 135.0.1 Mozilla Browser and have found that the file SAVING-function in the 'Application Menu' does NOT PROPERLY WORK: it records my message-title but NOT the contents (0-bytes!) -I never had such a basic issue in many years of very satisfactory Browser-use ...am I have a wrong setting somewhere and is there any quick fix please ...? - Email me when someone answers the thread ...MANY THANKS, Tony H.

P.S.: Please send me a link where I'd get a help since I'm NOT GETTING ANY HELP FOR SEVERAL WEEKS ...! Thanks-Tony H.

Hello.

This most recent update of the Firefox app for Android has suddenly made it so that all of my bookmarks and bookmark folders are out of order. The desktop version does not have this same problem, and syncing between the desktop and mobile accounts does not seem to fix anything.

Another issue I noticed with regards to bookmarks on mobile is that where once I could pull down while in the bookmarks tab to 'refresh' the sync, this feature suddenly does not work either.

I have done 4 total clean re-installs of the app and signed back into my account each time. The app then works as normal, with no bookmarks/sync/refresh issues. Within the next day, however, the app restarts itself and the bookmarks are scrambled again with no sync refresh operating.

I have tooled around the support forums and seen that at least since Ver. 133 other people have had this same issue. The support forums are really not user intuitive and I do not know where to go to have an actual conversation with the developers instead of hoping someone responds to a thread if they feel like it.

I really enjoy using Firefox as my default browser, and have never had this issue before on mobile after any app update until now. If the developers could please take the time to look into this request and work out a solution that doesn't include re-installing the mobile app every other day, I and many others would be very appreciative.