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My windows 10 PCs are running ver 140 (and say they are running the latest ver and no updates are available, but my W11 Pc is running v144. When I try and copy profile from 140 to 144 about 1/3rd of the directories are missing. I usually do to this prior to going on a trip when I copy from desktop pc running W10 to laptop with W11. Last time I did this there were no problems as both were running v140, but now that the laptop upgraded itself to ver144 that's no longer possible as a third of the directories end up missing - things like Inbox, Trash, Drafts, Archive etc which are fairly important. I've paused all Thunderbird updates until the problem is resolved. Can you help please?

(If any relevance, I'm on Macos 12 Monterey) 'Installation and updates' seemed the nearest topic due to the 'update' part of it, since this seems to only have been happening since this version, or I have simply not noticed due to not having needed to know. But if you look at my two screenshots, you will see the issue. There simply is no About Firefox on my firefox. Neither directly listed on the menu, nor as part of the 'help' sub menu.

Is there, for the sake of learning, a simple fix, so that I donlt have to uninstall/re-install? or an 'about config' type fix? Screenshot 1 shows the menu Screenshot 2 shows help sub-menu As you can see, absolutely no About Firefox

And, only potential issue may be, as you'll see from the share data upload is that I've a lot of tabs open, as I've got a lot to get through toniught, and tomorrow. So, maybe, t=though doubtfully, it is because it isn't handling the tabs and this caused a menu entry to be missing? Surely not likely.

Hello,

I use a Powershell script to manually install a Firefox update.

Starting with version 128.10.xx and higher, Update.exe expects different parameters, but I'm not sure what the parameter names mean (see screenshot).

Can someone explain to me what I need to pass for “arg-version” and “wich-invocation”? All other parameters were already present in the previous version of Update.exe, and I understand those, but unfortunately I don't know exactly what I need to pass for these two.

Thank you very much in advance for any help.

Hello, I reported this problem and you replied with a solution and that was to downgrade to version 142. My question is: Then what ? Will I be stuck with version 142 for years or is Thunderbird working on a solution to this problem because presently updating to any version such as 144 only continues to erase local folder contents. Thank you for your support Douglas Noades

I recent got the new thunderbird update. However i also loss all my saved messages and local folders and my contact email addresses. I really need that information for some IRS imformation. Plus u also get nothong but a bid Donate now message in the body of thunderbird. I have already donated several times. I need my information now. I am quite upset about this loss is data and email addresses.

While attempting to upgrade my Ubuntu Thunderbird client, I saw the attached screen. I'm concerned because of the unsophisticated style of the page, and the fact that it asks for my password, which makes me think "phishing". Can some trustworthy person confirm that this is a legitimate screen?

Using version 88.0 and browser - both outdated and not supported. How can I update to newest version and browser? I am 80 yrs old and not computer literate. Please keep it simple. No human help is available - I am alone.

Apparently Windows 11 won't upgrade from v23H2 to 24H2 because the very nice cpu (and system) don't support SSE4.2 or PopCnt instructions. While v23H2 won't get updates after November of 2025, I tend to use operating systems WAY beyond no more updates without problems, and only upgrade when browsers no longer update and support some websites, notably banking and credit card sites, for example.

Any way to get at least a rough idea of when/how long Firefox will continue to update on Windows 11 23H2 so I can plan ahead? Usually it's a year or 2 or more after Microsoft stops updating the OS.

Thanks.

I'm stuck using MacOS 10.14 right now, so I can't use anything newer. I know everything listed here is an old, unsupported release with its own security concerns. Let's get that out of the way. OK, good...

Right now, I'm on TB 102.15.1, and I'm wondering about TB 115. If I go to the About box, it's prompting me to update to 115.10.1.

If I read the release notes for 115.10.1, it says, rather worryingly:

Known Issues unresolved

After changing password on an IMAP account, the account could become locked due to too many failed login attempts.

Does anyone know if this particular bug was fixed via later releases in the 115esr series?

I'd rather not leave TB 102 if the above bug is still a concern.

Thanks!

I'm on the Release channel, but was updated to 142.0 Beta. Surely this is wrong. I am not on the Beta channel. I just want to stay updated to the most recent stable release.