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Dell Desktop - Windows 10 to Lenovo Laptop Windows 11 I followed the Alternative Manual Transfer between Windows 10/11 Roaming Profile and Local Profile Now on Lenova - Mozilla will not open - Profile Missing - Your Thunderbird profile cannot be loaded. It may be missing or inaccessible. I do not know how to uninstall it or how to start over.

I am encountering a message of "The installation seems to be incomplete. Please check your hardware and disk setup and/or re-install." when trying to run Thunderbird.

This first occurred on a system that had been working for a while. An update may have been installed.

Here's what I've tried. -

Uninstall Thunderbird (along with Firefox and Mozilla Maintenance.) Checked for Program Files/Mozilla folder (all were removed). Run SFC / Scannow Run CHKDSK Installed pending Windows update. Restarted the System Renamed (essentially removed) Profiles folder Turned antivirus software off Downloaded and installed the latest version of Firefox, then Thunderbird. Launched Thunderbird. Still received the same error..

Any ideas on how to resolve the issue?

Version 154 (64 bit) creates a start menu shortcut in %appdata%/Microsoft/Windows/StartMenu/Programs/ with each and every launch. I have Firefox installed to "C:\Program Files\Mozilla Firefox\

Installing a shortcut at launch is undesirable to say the least.

Is there a way I can disable this behavior?

My Mac last night lost thunderbird (and numerous others things) and it's setting itself up again. I get an error that smpt already exists and I can't go any further! What's going on? Using Comcast Mail.

I installed thunderbird for Windows on PC all was good till it went looking for a outgoing server a red box popped up and said outgoing server is already installed . That ended the install.

جهازي لابتوب نوع توشيبا ويندوز 7 لا يوجد به اي متصفح او برامج تواصل الاجتماعي ولا يمكن تحديثه او تحديث اي برنامج غيره لا يوجد بيه الا سلة مهملات و الكمبيوتر والشبكة فقط اريد تنزيل اي متصفح استخدمه

After moving to a new Windows 11 laptop and copying programs from the old laptop with PCmover, I seem to have two versions of Firefox that look different. If I start Firefox from the Start, Programs, it looks like it did on my old laptop. It has the correct extensions and all my correct settings and bookmarks. It is Firefox Developers edition 1.45.0b9, which I’ve used for years. I want this.

But there seems to be a new, second version that looks different and does not show my extensions or bookmarks. It is Firefox Windows MSIX 1.0. This is the version that now acts as my default browser when I click on a link in an email. I don’t want this but I’m not sure how to fix this problem.

In setting up default apps in Windows, it only gives me one Firefox choice. I have no way to choose between the two shown above.

How can I fix this?

On https://www.thunderbird.net/en-US/thunderbird/all/ if one were to select "Need a specific installer?" for any locale and any release channel and select "Linux" with "32-bit (binary)", then selecting "Download" means you get taken to a variety of "404 page not found" pages.

I do not need a Linux 32-bit release and I am not sure one still exists, but just wanted to report this error on the webpage.