Not a bug Facebook login error with Firefox on tablets

Affected version


When trying to login with Firefox 57.01 on my tablets (Android4.4.4 and Android6.00)

The following error comes up:

File not found

Firefox can't find the file at

Check the file name for capitalisation or other typing errors.
Check to see if the file was moved, renamed or deleted.

Facebook login with the same tablets using Chrome works perfectly.
Facebook login with Firefox on my desktop (win10) works perfectly as well.


Also problems with Chrome Win 10 Pro 64 (Chrome Version 63.0.3239.84 (Official Build) (64-bit))
Error: There is no valid connected account request available. Please try again.

Chris D

XenForo developer
Staff member
Can you reproduce the problem here? If not then I suspect that it’s a localised problem specific to your setup.