> use Ctrl+C etc. but it doesn't do anything Did you set clipboard events to false in about:config? Probably. After all, if you don't set that, lots of sites

> use Ctrl+C etc. but it doesn't do anything Did you set clipboard events to false in about:config? Probably. After all, if you don't set that, lots of sites will do stupid things like prevent you from copying, or pasting into certain fields. But it will break things like Google Sheets.