How do I remove AdBlockPlus from FireFox 52.9

[Corrine]

OT Re:  "Freedomlist back in the day ".  In case you haven't seen it . . . Freedomlist - So long and thanks for all the fish!.

[Kemosabe13]

Final Update on my space issue and deletions.

WOW, that Revo software really gets rid of a lot of residuals and worked great.
I got rid of the .NET items and MS Office (since I use Open Office) and found a few other things I had out there that I have not used in years.  Cleaned up my games (many many registry residuals cleaned on those) and so far, everything seems to work just fine. 
Machine even seems to boot up quicker and now I got 30 pct free space so wont run low for a while.
Eventually, once I clean out all the restore points I took, probably will realize even more space.

Thanks to ALL here for the help.   :D

[Corrine]

Thanks for the update BUT, now that you've found your way back here, stop in on occasion just to say hi.  After all, the old FL gang needs to stick together.  :) 

Plus, when you do finally decide t get a new PC, you'll likely have questions.