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Hello,

I would like to clear all of my sync data from my firefox account. This includes browsing history, passwords, payment methods, extensions, bookmarks, favourites, themes.

Thank you for your time.

I have used Thunderbird for years. Within the last couple of weeks I have noted 2 issues. 1st is the calendar issue with Reminder function. Reminder that have been listed w/ reminders, and repeated, for awhile, suddenly don't have the REMINDERS activate. They have in the past. Now, old events with REMINDERS, don't have the reminders activating. Nothing on the event listing has changed. I have reentered the event listing with no success in getting the reminder to activate. Interestingly enough, it doesn't affect ALL the events: just some. Same with ALL NEW EVENTS. Sometimes the event reminder activates and sometime not. Checked all the settings, version is up to date. I'm flummoxed.

2nd is addressing email. Names I have had in my address book for years, while coming in during auto-fill, are asterisked as not in the address book. I have reentered an asterisked listing but it still shows as not in the address book. Once again, it doesn't affect all listing, just some. I haven't anything & the version is up to date.

I've got a gremlin somewhere, but not adept enough to take a deep dive into operational settings.

Hi folks Since the beginning of Mozilla, in Firefox the item History > Recently Closed Tabs contained the tabs that had belonged to the foreground window: easy to use, straightforward, intuitive. For some reasons now it's all the tabs of all the windows in chronological order. It became practically unusable. Who the heck thought this was a smart move: turning a very practical feature into a useless one? Is there a turn-around? Maybe it's like the Window menu that used to be in chronological order and turned into an alphabetical order: a bureaucratic decision completely unaware of the users preferences. Nick

আমি Windows 10 ব্যবহার করি। Firefox দিয়ে www.tiktok.com খুলতে গেলে নিচের এরর মেসেজটি আসে:

"Did Not Connect: Potential Security Issue"

এখানে বলা হয় Firefox নিরাপদ সংযোগ করতে পারছে না এবং সাইটটি HSTS ব্যবহার করে। অন্য সব ওয়েবসাইট ঠিকঠাক খুলছে, শুধু TikTok এ সমস্যা হচ্ছে।

আমার কম্পিউটারের সময় ও তারিখ ঠিক আছে। Firefox এর সর্বশেষ ভার্সন ব্যবহার করছি।

এই সমস্যার সমাধান কীভাবে করব দয়া করে জানাবেন?

ধন্যবাদ।

Hello, for some reason all my tabs just closed and i cant get them back by any way either than recovering last session, but when im trying to follow the way "history - recover the last session" there is no such option as "recover the last session", are there any other ways to recover the session or make this option appear? firefox version - 140.0.4 (64 bit)

Entsprechend der Einstellungen sollte erkannte Junk Mail aus dem Junk Ordner nach einem Tag gelöscht werden (wie es auch in der Thunderbird-Anleitung beschrieben ist und wie es in der Vergangenheit auch war). Aber die Junk Mail wird seit einem der letzten Updates (z.Zt. 138.0.2) nur in den Papierkorb verschoben, statt daß sie gelöscht wird ... - was aus meiner Sicht keinen Sinn macht. Wie kann man diesen Makel beheben? Danke im voraus für jeden Hinweis.

According my settings the junk mails in junk folder should be deleted after one day. But - instead of deleting these junk mails - the junk mails just move to trash folder (which then must be cleared manually) - absolutely nonsense !! My thunderbird version 138.0.2 - before update to this current version, the junk mails have been DELETED (!!) according my settings and NOT moved to trash

Hallo,

ich bekomme beim Starten von Thunderbird (bzw. beim Anklicken der Taskleisten-Verknüpfung) folgende Fehlermeldung:

„Diese Anwendung konnte nicht gestartet werden, da die Side-by-Side-Konfiguration ungültig ist. Weitere Informationen finden Sie im Anwendungsereignisprotokoll. Weitere Details können auch mit dem Befehlszeilentool sxstrace.exe angezeigt werden.“

Ich nutze Windows 10. Thunderbird wurde möglicherweise gelöscht oder ist beschädigt. Wie kann ich den Fehler beheben?

Danke für eure Hilfe!

I have never downloaded X but I have 2 icons for it. I don’t know who they are? Seems to delete an account you must have 1 first and as stated I’ve never downloaded it or know what is. The situation is now Firefox has out two X’s put up on home page. I appreciate any time to thus, Robin

I have visual issues and cannot read thin text. I am trying to set up a Windows machine where it defaults to thin text. Yes, both Windows and Thunderbird allow users to increase font size and scaling, but I don't have enough screen size. It's much more helpful to increase font weight, and only somewhat increase some font sizes.

I already have /* Global UI font */

• { font-family: Andika !important; }
• { font-size: 12pt !important; }
• {font-weight: bolder !important;}

Which makes the message list good and bold, and

1. threadTree tr[data-properties~="unread"] {

color: red !important; }

Which distinguishes unread messages.

But for whatever reason, the fix doesn't extend to the messages or the settings page.

I have looked in the support section and find the suggested articles confusing so this is what I am trying to accomplish.

I wish all messages stored and deleted on Thunderbird to be reflected on the gmail server. So ... if I delete a message in Thunderbird that will be automatically deleted on the gmail server. Easy. I guess this is settings. But the challenge is which settings to play with.

If it is relevant ... I have many folders set up on the Thunderbird client which are not on the gmail server.

Any help really welcome.

Running Thunderbird 140.0.1esr (64bit) on Windows 11 Dell desktop.

Have had two active mail profiles running for years, one for each of us in the family. Some weird things are taking place now.

This afternoon when initiating Thunderbird by selecting Thunderbird icon on the task bar as always do, Thunderbird began going directly to my profile, not bringing up the 'Thunderbird - Choose User Profile' window. This has happened previously and I got instruction on the forum how to resolve, so I did that resolution again.

I ran Thunderbird.exe -p in the RUN box .

It bought up the 'choose user profile' window so I UNCHECKED the box 'use the selected profile without asking at startup.' I guess somehow it got inadvertently checked. I expected this to resolve the problem. Note: When the box came up the first time I did NOT notice the names of the profiles offered, ours or the default ones mentioned below.

Now, when I initiate Thunderbird by selecting the icon in the task bar or selecting the icon on the desktop or selecting Thunderbird in the START list of apps -- it still goes directly to my profile not bringing up the 'Choose User Profile' window. HOWEVER, when I enter in the RUN box either thunderbird.exe or thunderbird.exe -p it brings up the 'Choose User Profile' window.

BUT -- the profiles offered are default and default.esr. They are not our two profiles we have been running for years. Our two profiles are still in the Thunderbird Profiles directory as seen with File Explorer. Hovering over default and default.esr shows their respective paths to the Thunderbird Profiles directory. (Cannot edit these paths.) But using File Explorer, these two profiles (default and default.esr) are NOT seen in the Profiles directory at all.

Question: 1. How do I get Thunderbird to function correctly. That is, when selecting the Thunderbird icon it brings up the 'Choose User Profile' showing our two profiles, and when I RUN Thunderbird.exe in the RUN window it ALSO shows our two profiles in the 'Choose User Profile' window, and NOT that default and default.esr profiles which I don't even see in the Profiles directory.

One more thing -- I have been thinking of switching over and installing the Thunderbird Release Channel -- If I installed it, would these problems carryover or would they be resolved? Thank you.

Added this note: In the past when the box 'use the selected profile without asking at startup' got inadvertently check and I resolved the problem by running thunderbird.exe -p, I was not running the Thunderbird version I am running now. It was back on 9/22/24 and I forgot what version it was but I don't think it was the ESR version back then. Maybe that is why running this command worked back on 9/22/24, but getting weird results now with the current esr version running. Thank you again.

I'e been using Claude.ai with no problems until a couple days ago when Interactive Artifacts stopped loading. The Interactive Artifacts work in Safari and on my iPhone app, but not in Firefox. I've tried clearing cache, disabling extentions, and opening up Claude in a Private Window, but nothing seems to work. I much prefer Firefox to other browsers. I haven't disbled Javascript (nor do I know how). What else could be causing this? One suggestion was to restore Firefox to default settings - I'd prefer ot to but if it works, I will do that. How do I do that? Is there anything else I should try?

Hey,

so, for many years I use firefox with hundreds of tabs, to keep that loading smoothly, I have the Profile folder on a RAM disk, which size is limited. Originally I started with 512MB which seemed plenty, but got bloated eventually, so I increased it to 700MB, then 800MB thinking it should be fine, cause "my personal data" isn't that much.

In the beginning i had to manually clear my own Website Data every couple months, deleting everything older than a year.

Currently I have to delete my personal Data every 10 days and only keep the last 2-3 months, to not run out of space... I also started to not visit heavy Websites with firefox, but with another browser that doesn't run of a Ramdisk, but despite all my efforts I need some other solution.

It feels like some files just keep growing over time without getting rid of old data, and storing new technical files, that i don't want in my profile folder... At this point, getting some extra 50-100MB that doesn't come from deleting my current data would be great... A way, to cleanup any unused data... I tried everything I could find, but I'm kinda stuck. Keeping all my Profile settings, customisations and still used personal Data is really important to me.

Since April 5th I have lost spell check in the message pane of the emails I type on outlook.live.com It still works in the subject line, but not the message area.

Windows 10 pro 22H2 updated to end of March, when spell check was still working well. Firefox 137.1 English Canada Language selected (has worked well for years)

I go to outlook.live.com to read and answer my @hotmail.com emails.

When right clicking on a misspelled word in the message area I get only these options, Firefox does not give me the usual options.

I am currently having other problems on that site, clearing outlook.live.com cookies does not clear the problems.