on Firefox for Android "synchronize options" does not sync options

[paponius]

Turning ON "synchronize options" in Firefox, SingleFile Options, produces no effect on an Android mobile phone.

To Reproduce
Steps to reproduce the behavior:

1. Firefox Options > Extensions > Extensions Manager > SingleFile > Settings > "synchronize options": ON
2. Options are different than on another device.

Expected behavior
Options will synchronize, change on one of the devices. As it is with multiple Desktop Firefoxes

Environment

• OS: Android. Tried multiple versions.
• Browser: Firefox mobile
• Version: 134.0.2 (recent)

Additional context
Tried new Phone, just installed Firefox.
Tried restarts, force kills.
Tried sync between two Firefox mobiles on Android.
Tried making change on the phone and checking if it went to the PC.
Tried reset settings on PC, changing just two checkboxes and manually synced FF account on both PC and phone.
with no success.