Alle produkter Community Forum

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show the folders. I did the same upgrade a month ago on a laptop (Windows 10 Pro to 11), no problems. I didn't externally back up the messages as I am a dinosaur and don't know how, but at least they are still on the hard drive. Thousands of them though so I need the local folders back. Tried all the fixes I can find on the Community Forum, without success. Can anyone help please? Bob

When trying to add my outlook.com email account to Thunderbird 143.0.1, using the instructions at https://support.mozilla.org/en-US/kb/thunderbird-and-exchange, I get an "Exchange auth error." I'm able to add the account manually using imap, but I want to use Exchange so I can access my outlook.com calendar and contact when TB is updated to include them.

Not sure if this is related, but I had just enrolled to continued Windows 10 updates and then found that CCleaner wouldn't run anymore. I couldn't get it fixed no matter what I tried so I had to reinstall an older version of it. It opened up Chrome browser on my computer after finishing the installation, and now, I can't figure out how to make Firefox the default browser again. Windows 10 Home Alienware 15R4.

Hi, Long time Mozilla supporter here. Keep up all the great work for us!! The fonts on my www site are jibberish. Very weird. Note this is only on my Nightly (I keep it updated) browser. Site: https://neilmurphystudio.com/ 1. Image attached showing font display in Nightly regular browser 2. Nightly private browser window displays correctly!!! 3. Regular Firefox (not Nightly) displays correctly. 4. Chrome and other browsers display fonts correctly.

I've tried a few online suggestion. Nothing works so far. Ideas please? I really want to continue using Nightly if possible. My best, Neil Murphy

BTW, I may have more than one Mozilla/Firefox account. How can I check that? Try logging in with the 2 possible emails? This time, I logged in using [email address] I may have an account under [email address]

Thank you!

Posted this in Google Play Store reviews and was told to post here:

Frustrated with latest update to the download UI. When you save an image for example, the Download Progress and Download Complete pop-up can be swiped away to hide the pop-up before it naturally fades, but the area of the screen it occupied remains uninteractable for a period of time anyway. If you try to tap anything in that area, or swipe to scroll a page by starting the swipe in that area, nothing will happen. It's as if the pop-up is still there, just not visually. Hoping this gets fixed.

Additionally, it seems awkwardly difficult to swipe away the pop-up as well, requiring almost an entire screen width of swipe to make it properly disappear.

Hallo,

(new information at the end)

in an effort to understand why one s/mime signed message I received could not be verified by Thunderbird (140.3.0esr (64-bit) on Ubuntu 24.04.3 LTS) (error 1041, "unknown problems with this digital signature"), but by all other clients I and others could check (including cli tools openssl, cmsutil), I did a few tests using my own certificate (using rsaEncryption, SHA256).

Inital observation: Messages signed with "openssl smime -sign -in msg.txt -to <email> -from <my-email> -subject test -signer mycert.pem -inkey mykey.pem -out signed.eml" and opened in Thunderbird showed error 1041. Any modifiers like -crlfeol, -text, -binary, ... did not make a difference.

Omitting signed attributes (-noattr) however helped. The signature was verified.

Further investigations now showed that the reason for that is a mismatch of the signing time in the signed attributes block with the RFC 5322 date in the header (or a missing date, which is the reason, the openssl smime output is rejected). If there is no match, Thunderbird shows a 1041 error (unknown problems with the signature).

However, I'm wondering whether such a test a reasonable. The standards don’t instruct MUAs to compare signingTime to the RFC 5322 Date. Flagging a mismatch is not required by spec and in my opinion adds little to no security value. The RFC date header can be easily modified and the signing time is openly readable.

Does anyone knows why it has been decided to test that?

On Sunday October 5, 2025 I began experiencing an issue with gocomics.com. I thought it was a temporary one that would resolve itself. Monday morning it was still happening. I contacted GC thinking the issue was on their end. They were unable to replicate it. They asked me to try to go to the site using the private window on FF. I was able to access it just fine. Therefore, we know it is not GC. I was also able to get to their page on Chrome.

I tried again on Tuesday. Same issues. I had already read on some forums where others were getting the same loop that I am: https://amub2c.b2clogin.com/amub2c.onmicrosoft.com/B2C_1A_GC_SIGNINSIGNOUT_POLICIES/oauth2/v2.0/logout?post_logout_redirect_uri=https://www.gocomics.com

It was suggested to try refreshing FF. I did that. Didn’t work. Gave up again for the day.

This morning, I tried uninstalling FF. Didn’t work. What else is there left for me to try?

I HAVE TRIED TO FIND A STREAMLINED WAY TO DELETE MULTIPLE DUPLICATE BOOKMARKS (UNINTENTIONALLY CREATED BY AN OLDER FIREFOX BOOKMARKS IMPORT). BUT I HAVEN'T FOUND ANYTHING THAT WORKS. USING BOOKMARK MANAGER IS FAR TOO TEDIOUS AND TIME-CONSUMING. AND AN EXTENSION ADD-ON I TRIED CREATED EVEN MORE PROBLEMS. I NEED HELP!!

I am thinking of going back to Thunderbird as my e-mail program (I currently mostly use Apple Mail). I have several e-mail accounts. On my personal Gmail account, only a handful of sent messages are showing up in the sent mail folder. On another Gmail account and on my business Google Workspace account, I do not have that problem; as best I can tell, all the sent messages are there. I would appreciate help in fixing the problem on the main Gmail account that I use for personal matters.

Hi,

I really want to replace Google search engine with Firefox. I already have the Firefox app installed but i have a Google search engine. I don’t want Google anymore. How do I replace it? Can you please explain any advice to me like I’m 5, as I have a mild cognitive impairment and am not very tech savvy.