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I'm assiting an elderly user of Thunderbird. We were trying to update his saved password but the menu items did not match my current version 153.3.1esr. When I asked him to check his version he had options to update from v52. He went through 3 update cycles to v78 when all his data had disappeared. I found some information at: https://support.mozilla.org/mk/questions/1312391 which seemed to put the issue at a file format change in v78. When he looked at the profile folders the most recent was created in 2024. (I couldn't get him to find a modified date more recently.) When he closed Thunderbird and used the Run command "Thunderbird.exe -P" we couldn't find a way to select that most recent profile folder. Are you able to give me instructions I can use in a Windows remote (quick) assist session to restore his data from the profile folder?

Alternatively, is it possible to downgrade back to v68 of Thunderbird; would this restore his data (account settings, emails, contacts/address book etc?

Thanks in advance for any guidance you may be able to offer.

All over this site it says how great it is and what it does but no where does it say what the current version is or even what the version of the downloads are. You tube says multiple versions are not playable on this version yet this is the current version i am using. Software developers have really hit low levels of Not KISS.

Hi! I'm hoping you can help me! I use Thunderbird, and have for many years, and I love it. My computer is on its last legs, and I'm trying to save up for a new one, but, yesterday I did something possibly stupid... (yeah, I know, you NEVER get people asking for help who've done stupid things, so this will be unusual... lol). Anyway... I turned my computer on and got a popup saying that my Thunderbird needs an update and it's been a while since I updated, so I hit OK on the update... Well, my arsehole of a computer chose that exact minute to shit itself and die. When I tried restarting it, my Thunderbird no longer works. Now I have a popup with a big red X that says "The installation seems to be corrupt. Please check your hardware and disk setup and/or re-install." Can you help me? I desperately need to check my email and have one I need to send. I don't know what to do. I've also got YEARS worth of emails sitting in the system, so I can't risk losing them, either. Please help. L.

How to keep an older version of firebox and eliminate a newer version?

PC amateur here and today is 9/20/2026; I am now using the next older version of Firefox which I retrieved from my desktop Firefox icon because about a year and a half ago this older version of Firefox got automatically updated to a newer version which is horrible, asking me to go through endless routines going in circles about getting me signed on with Microsoft and more and which keeps coming back every time after I login to my PC, so I have to delete it from my window and replace it with this one. What, if anything, could be done to eliminate this newer version of Firefox?

Unbelievable! Talk about irony. I just got the latest Firefox update. What was it touting? "We've blocked MORE of the pop-up ads!!" And what did it include? A pop-up advertisement from Mozilla. I just wanted to find out if that was a gag, a one-off incident, or someone pirating Mozilla's new update to show that it doesn't do what their touting.

I have a Samsung Galaxy S5 phone that I need to return to service because of the failure of... a newer cell phone. The S5 phone is running Android Version 6.0.1 and the current Firefox is Version 61.0 I KNOW this phone is capable of running... not the very latest Android edition, but a much newer version than 61.0!!

I am having difficulty in determining the latest usable Firefox for Android version, downloading or installing it. Because of the age of the phone and the Android version, Google Play is absolutely useless.

I am probably missing something... stupid... because this should NOT be this difficult! Can anyone direct me to an "apk" file of the latest version of Firefox for Android that will work with Android 6.0.1?

Thank you VERY much for any assistance!!

after the recent update every time I got full screen i can see my task bar and I have to tab out and back in to get rid of it ive tried dpi settings Firefox config settings and it just doesn't work

On 28 August I received a blank email with just the sender and subject showing. Since then I have sporadically received completely blank emails, with no sender or subject, while others are arriving as normal. The same is happening when I open Thunderbird on my mobile, but not on my laptop which has an older version installed. It would seem that the issue is caused by update 153.1.1esr, as that was released on 28 Aug.

Can I revert to a previous version of Thunderbird or is there another way to fix this, thanks.

I've been a user of Firefox for many, many years but I think I'm ready to switch to another browser. Every time Firefox updates, it deposits a shortcut on my desktop that I have to delete. I already have it installed in my start toolbar so I do not need it on my desktop. People will say "no big deal, just delete it" That is my point, I shouldn't have to, give me the option in Settings to install it or not.

I have resurrected a PPC ( 32bit) Mac G5 to Ubuntu 14.04, the installed foxfire version is 28.0, canonical 1.0.

I can not access the internet, as expected, due to an unsure connection.  

Is there a way for me to upgrade foxfire? Can I fix the secure connection issue and use still https? Is there a dependence that is needed? What do you suggest? thxs Mart

https://www.firefox.com/en-US/whatsnew/155/?oldversion=154.0.1&utm_medium=firefox-desktop&utm_source=update&utm_campaign=155