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I am running Windows 11 and the latest version of Firefox. Firefox was working perfectly yesterday, but today when I tried to open it, I got the message "This app can't run on your PC". What could be the problem and how do I fix it?

Thanks,

David

Desperate help needed here. Since windows live mail stopped working a few weeks ago ive decided to try thunderbird as my new email program on windows 7 pc. Have downloaded but every time i try to add my bigpond email account it says it cant because either configuration, email address or password are incorect. Ive been talking with bigpond support for days and getting nowhere. The email and password are correct because i can access telstra webmail and weve tried both pop3 and imap config settings but getting nowhere. What is left to try? I tried adding a gmail to thunderbird and it worked but no luck with the bigpond email.

I need to install the newest Firefox browser on my android phone and be able to get a video chat session to work . The browser test on the jpay website fails the test chat every time.

I didn't know there was a non-ESR version of Thunderbird until I found out by chance a few days ago! Since the latest update to ESR 128.5.2 has crashed 11 times this week, I would like to move to the latest version (64 bit?) non-ESR. There must surely be an official Mozilla step-by-step guide to doing this?

Ever since a few weeks ago, some of my add-ons as well as every new add-on I added after that are unavailable at the start of Firefox. I then have to click into the application menu, click on the warning message for that add-on and enable it again. Since this is quite tedious and frustrating, I tried looking online for any info. I tried updating everything, disabling and enabling manually and removed and re-added some if the add-ons that cause issues.

I am loath to set up a fresh profile or reset all add-ons as that would cost a lot of time to configure everything again. In hopes of a solution that avoids that I am asking here now.

I can never sign out of my iphone or import my contacts. You have me down on Three devices Each attributing to iOS,iPhone and Firefox on PC. I recently got rid of my Microsoft account because I thought its outlook was the source of Confusion. If it’s still alive, get rid of it. When I tried to sign in After I bought a. second pc, You totally confused The former owners. account with mine, Leading to her Canceling Firefox because. we shared passwords for Weeks. I don’t know what’s going on, but I wish someone would pick up a phone over there. I was with y’all for 15 years. Look at the past tense. I got to move on.

Hi, while looking to remove unused files I found two different versions, version 127.0 dated 12/24 and 134.0.1 dated 01/25, can I safely remove the older version ? thanks for any advice.

After searching and following some suggestions approaches I've consolidated these into the following steps which worked for me:

Copy the Profile to a Disk/USB

1. Mount the disk/USB. This needs to larger than the profile selected
2. On W10, open TB -> Troubleshooting Information -> Profiles -> about:profiles.
3. Find the the profiles where 'Default Profile' is Yes
4. Click on Show in Explorer (e.g. vx7sjwjh.default)
5. Close TB
6. Copy and paste the folder selected in Explorer to the disk/USB to be used for the transfer.

Install the Profile on the maxOS

1. Mount the disk/USB
2. In Finder, find the mounted volume and copy the profile
3. In Finder, select Go->Home
4. If you can't see Library enter 'command+shift+.'
5. In Library->Thunderbird->Profiles
6. Paste the copied profile

Assign the Profile in TB

1. Open TB
2. Help->Troubleshooting Information->Profiles->about:profiles
3. Create New Profile->Continue
4. Choose a name that has not been assigned. You will see an error 'A profile with this name already exists' if it is not unique
5. Click on Choose Folder
6. Select the folder you pasted
7. Click Done
8. Scroll down until you see the Profile you created (if you don't see it, restart TB)
9. Click on 'Set as default profile'
10. Click on 'Launch Profile'

You should now see your profile