Cleared cache and cookies for YouTube and Google.
   Disabled all extensions in Firefox.
   Logged out of all Google accounts.
   Tried Incognito mode.
   Tested on other browsers (which work perfectly, so it seems isolated to Firefox).
   Signed in on a different device with the same Gmail (works fine outside Firefox).
   Checked Google account for security or account issues (everything seems normal).

Hi everyone, I'm having trouble signing into YouTube using a specific Gmail account on Firefox. I recently deleted a YouTube channel associated with this Gmail, and since then, every time I try to log in to YouTube, I get the error message "Something went wrong." This issue only happens with this particular Gmail account and only on YouTube, while other Google services (like Gmail and Google Drive) work fine. Here's what I’ve tried so far: Cleared cache and cookies for YouTube and Google. Disabled all extensions in Firefox. Logged out of all Google accounts. Tried Incognito mode. Tested on other browsers (which work perfectly, so it seems isolated to Firefox). Signed in on a different device with the same Gmail (works fine outside Firefox). Checked Google account for security or account issues (everything seems normal). Does anyone know how to resolve this? Has anyone else faced issues logging into YouTube after deleting a channel, particularly with Firefox? Any tips or solutions would be greatly appreciated! Thanks!