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hi i have 2 pc's using tb , one can sign in to my outlook.com acct, but the desktop pc can not. have checked all setting etc

the working installation is on esr update channel, other on is not [so i have 2 difference tb versions]. both are updated

if anyone sees in a forum that i had email trouble recently pls note that i now have an old backup of win10 in service on the desktop pc. haven't yest found my way back to that forum to post the results of using peoples advice but they were very helpful

thanks if anyone can assist

When I am typing an email in Thunderbird, regardless if I have my font size preset to Extra Large, Large, or Medium, the font that appears in the email while I am typing the email, is very tiny, so tiny it is hard for me to read it. Yet when the email is received by the recipient, the font appears the correct size as selected in composition settings. How do I fix this?

Hi customer service, please help me to restore firefox data & tabs before today. my firefox update this evening crashed & unable to restore. Million thanks

uwithout any warning several updates for firefox were handled and step by step the design was changing with the result, that I got a lot of problems with this browser. I reached with my windows 10 a longer use until oktober next year. Now i must see, that even firefox does no longer support Windows 10. How can you assist for longer time without loosing all the installations on it or you can offer suitable solutions.

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my thunderbird freezes at the point of checking mails. when i try to update it, it opens a new application completely and doesn't update my present one. i also can't find the location of the app or the data. pls help!!!

Hello, After replacing my PC (Windows 11), I reinstalled Thunderbird. I have 4 GMail accounts. For 3 of them, no problem. But for one, I have the error 'Authentication error. Connection to server is impossible. Configuration, identifier or password look incorrects'. I used default settings. This account is not particular. Issue remains after deleting this account, restarting Windows, and re-creating this account. I've created a new Windows user, then add this GMail account, and no problem. So what do you think of this? The only workaround for me is to switch between 2 Windows user. It's not useful. And I don't understand why this account, which is similar to others, has this issue. Thanks a lot for your answers.

Hi. When I click on the arrow to go back to previous page, nothing happens. This occurs on any website I am connected to. Any suggestions would be greatly appreciated. Alan

Cannot open my cart nor add items to my cart on https://www.guitarcenter.com/Black-Friday-Electric-Guitar-Deals.gc?filters=categories.lvl0:Guitars&icid=LP12589#paginationTopAnchor I can take that same URL and immediately open it using Google Chrome.

Hi,

I’ve noticed that Firefox on my Android phone becomes noticeably slow whenever I open certain video or streaming pages. The browser doesn’t crash, but the page takes a long time to respond, and scrolling becomes choppy until the video fully loads.

I’ve tried clearing the cache, disabling add-ons, and testing on both Wi-Fi and mobile data. The issue only seems to happen on Firefox — the same sites load smoothly on other browsers.

Is this a known performance limitation, or is there something in the settings I should adjust? I’m not sure if it’s related to media decoding or just heavy websites.

Thanks for any guidance.

I must have changed something because T'Bird no longer starts. I was trying to copy TB file from Win 10 to a Win 11 PC. That failed because some files could not be copied. But now TB is not starting up. I checked the Start folder and it is in there.

Suggestions please.

in the last three days or so, the pop up window in FF where I would find the copy, paste etc has its script disapearing. it shows some space in black, and if I hit it just right I can still open a new window for example, even tho the script for that programming is no longer there. does anybody have an idea? I am fully updated mint user, it is starting to be bother some, do I need to deinstall/reinstally?, I would prefer not to, sigh, but I certainly wouldn't want to do it if it won't fix the issue Thank you for any suggestions

I must be doing something wrong. I am new to thunderbird, migrated from Eudora since I can't send mail with Eudora anymore.

I tried to configure Thunderbird as much as possible like Eudora, but ... it doesn't receive nor send mail. On the surface it looks fine, it seems thunderbird logs into the server, it seems it sends mail and checks for new mail, only I don't receive anything, nor send anything even though it looks it does. So what am I doing (or is going) wrong? (I can still receive mail with Eudora and today I checked and received 54 mails, none with Thunderbird)

Hello. Although I have configured the page translation settings, the pages are not automatically translated. It may be possible with the help of Please help me solve this problem.

Na górze strony widzę napis "Umieść swoje zakładki na tym pasku zakładem, aby mieć do nich szybki dostęp". Chcę ten napis zlikwidować i zwolnić miejsce na ekranie. Jak to zrobić?

Three horizontal line menu bar is missing. All I have on top are three dots. … Home icon is also missing. Can’t find any way to fix this. Deleted the app reinstalled and still have the same problem.