Downgrading FF 55

[Alexo]

[cbaker_admin]

Probably not. It looks like you would need a backup of your profile prior to v55. Do you have any older FEBE backups you may have forgotten about? I search my external and cloud drives and was able to find backups of Fx 53 and Fx 50 that I can use to restore to pre-Fx 55 if I need to.

[Alexo]

Unfortunately not. I haven't used FEBE until now.

The annoying part for me is to reinstall and reconfigure all of the extensions.

[cbaker_admin]

I misunderstood your first post. I thought you wanted to restore a v55 full profile backup to Fx v52.

You can use FEBE and (or ) to backup/restore extensions and their data to earlier versions of Fx.

BTW, AMO has OPIE2 marked as incompatible with Fx 55, but it's not true - it works just fine.

[Alexo]

[cbaker_admin]

In this case, you would want to use FEBE/OPIE/OPIE2 to restore your extensions and their respective options. With all the other items, FEBE won't be of much help.

OPIE2 is an advanced version of the original OPIE. It does a better job of finding extension settings than OPIE does. FEBE does not backup/restore individual extension preferences, just the entire set of Fx preferences/options (which include extension settings) but it's an all-or-nothing preposition. To be on the safe side, don't use FEBE to restore the preferences, just the extensions themselves. Then use OPIE(2) to restore the preferences. They can be exported (backed up) and imported (restored) all at once by exporting them into a single file (see OPIE options).

If you have several extensions, you can use FEBE's 'Quick Backup' option to get all your extensions backed up into a single, installable .xpi file. Then you can restore them all at once.