This extension is completely useless. I set the page zoom to 90% in the extension for a specific page and saved it as a rule. When I close the page and reopen it, the page zoom is not set to 90% because you can see this when you check the page zoom in the Firefox hamburger menu.

Didn't find a way to set per specific page, but it's only available per site

The stupid thing with X and Y coordinates is retarded. I just want to sets zoom for specific sites only. This is an awful way to do zoom. It puts horizontal bars where none needs to be.

I wish I had a backup restore setting

Very great extension,it works on Android. Thank you very much.

it zooms in a wired way, still the idea is <3 :D

nie działa

doesn't even show up