Pale Moon and Firefox Legacy Extensions
I went to the Mozilla Add on page and found this for FEBE:
"Firefox v57 notice:
FEBE is considered a 'legacy' extension and will no longer work with Firefox v57 and above. FEBE cannot be written with the WebExtensions platform that Mozilla has adopted for all extensions. FEBE will still be maintained, but only for Firefox clones (like Pale Moon)."
I haven't used Pale Moon in a long time and may try it again.
Never buy version 1.0 of anything.
Don't it always seem to go
That you don't know what you've got
Till it's gone
They paved paradise
And put up a parking lot
Joni Mitchell's Big Yellow Taxi