I-Firefox Community Forum

"This profile was previously synced to a different account To keep your data organized and secure, each Firefox profile can only be synced to one account. To sign in using xxx@xxxx.xxx, create a new profile."

So I deleted my old mozilla account since I abandoned the email that it was linked to, but when I tried to sync with my new account I get this. Is there anyway to do this without having to make a new profile?

I tried making a new profile and copy and pasting my profile into the new one, but still get the same pop up. I guess there's something in my profile that says it's been synced before, is there anyway I can find that and delete it or change it?

With reference to my question just posted, also now when I click on my Firefox browser, the Yahoo search engine seems to take over and it won't let me come out of it. Mark

When using the AI chatbot in the Firefox browser, I cannot click to the left of a certain coordinate only when Claude is open. This issue does not occur with other AI bots (such as ChatGPT or Gemini). What could be the cause? My environment is as follows:

OS: Windows 11 Pro x64 Firefox version: 147.0.4

Additionally, tabs are set to vertical display, and the sidebar expands only when the cursor hovers over it.

Thanks.

How to search for installed (both enabled and disabled) addons extensions in Firefox browser like chrome does via "chrome://extensions/" in 2025?

It is quite surprising that in 2024-25, firefox still doesnt have any option to search for installed addons via "about:addons". You can only search for addon site, not for those installed on your device and profile and browser.

Is firefox team really updating their browser for 2025 when compared to chrome?

I am using Firefox on my computer, but WhatsApp Web is not working correctly. The page does not load properly, or some features are not functioning as expected. I have tried refreshing the page and restarting the browser, but the problem continues. Please help me fix this issue.

Good day, everyone,

I've been using Firefox for several months since switching over when the migration to Manifest V3 in Chrome gained momentum. Initially, Firefox worked flawlessly, but over the past couple of months I've encountered a recurring issue where downloads often fail -- sometimes right at the start and other times midway through -- especially with larger files.

I've encountered this issue across multiple machines, and changing the destination drive where the files are saved hasn't made any difference. Interestingly, the same files download without any issues in Chrome, so I've ended up relying on Chrome exclusively for downloads.

Has anyone else experienced this issue?

Thanks in advance!

I am looking to turn on review checker and cannot see how to do it. I don't have the price tag icon displayed nor do I have any reference to Review Checker in my settings. I'm wondering if my version of Firefox supports it (133.0). Any ideas?

I am receiving pop-up messages indicating CRITICAL ERROR! and "Click here to remove them!" followed by a URL ending with velonexa.com They appear as though they are from Mozilla, but we know better. I try to close the window and, of course, without clicking the url or the Dismiss button, but they keep reappearing. There are three stacked windows, constantly appearing as the pop-up windows are closed. Any thoughts or recommendations to eliminate? I've tried shutting down and rebooting. Pretty confident these are not from you. They are also always on top. I try to do a screen capture or print screen and i only capture what is behind them.

I know this is not generated by Mozilla, but thought you should at least be aware of them.

I am using Pop OS. Videos are not playing in firefox. In youtube it shows loading infinitly. In reddit all videos become green. I tried playing a downloaded video it also become green. These are only happening in integrated mode. If I use hybrid graphics mode all works good. I attached the about:support page and about:config page.

about:config page link about:support page

These files are taken in integrated graphics mode.

I've changed primary email some time ago and wanted to login using a new device. However, login fails with "Incorrect email case" and response contains my old email under "errors[0].extensions". After that, there is another request doing login with old email, which seem to be successful, however the whole operation fail and page only shows "Something went wrong. Please close this tab and try again.". Trying to login directly with an old email leads to "Primary account email required for sign-in" error. Please assist.