it's been pretty good so far, but prevents a couple of websites from working, and there's no way to whitelist sites, as far as i can find

Works Great, I especially like the options in the context menu (right click)

Breaks google sheets

ok

It used to work without problems, but recently stopped google docs (sheets) from creating dialogs or pop ups such as Crtl+F...

Worked fine until it broke many features in Google Sheets (wtf?)...

seconding other reviews, usually works perfectly behind the scene but recently breaks the find hotkey in google sheets for some reason

usually works quite unnoticable in the background, but recently it started blocking the find-and-replace function in google sheets

This addon blocks hotkeys in Google Docs. There is no whitelist feature in this addon.

Google Apps Script doesn't open if this extension is enabled and there's no field to exempt URLs on the settings.

doesn't work even trying to clean the search feature of firefox, for example:
search?client=firefox-b-d