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sign in page for sync wont open

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Hi my Firefox crashed for some reason last night & i lost all my tabs & bookmarks that i had sync over from my old computer. I ended up uninstalling it & reinstalling it but when i click on the sign in page all that comes up is a blank page with a twirling blue circle which never loads. :( I tried loading Firefox onto mt android phone & syncing the tabs etc & it did it there. What is going on? :/

Hi my Firefox crashed for some reason last night & i lost all my tabs & bookmarks that i had sync over from my old computer. I ended up uninstalling it & reinstalling it but when i click on the sign in page all that comes up is a blank page with a twirling blue circle which never loads. :( I tried loading Firefox onto mt android phone & syncing the tabs etc & it did it there. What is going on? :/

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Can you load this page - https://accounts.firefox.com/settings - from that b0rked Firefox installation?

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Make sure you allow cookies for the accounts.firefox.com domain if you aren't allowing cookies generally or use extensions that deal with cookies. In case of issues with Sync you can try this: Disconnect from Sync and Reconnect to Sync again. You can disconnect from Sync by clicking the e-mail address in the "3-bar" Firefox menu button drop-down list or go to "Options/Preferences > Sync". Delete the signedInUser.json file in the Firefox profile folder and delete the Weave folder (Sync was formerly named Weave). Remove an existing chrome://FirefoxAccounts entry in the Firefox Password Manager. If that isn't enough then delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.