erything before the cursor
ctrl-k Cut everything after the cursor
ctrl-y Paste the last thing to be cut
... t mode at current position
a Put into insert mode after current position
dd Delete line (saved for pasting)
D Delete text after current cursor position (saved for pasting)
p Pas
Compatibility Reporter]] : avoid break of add-ons after each major Firefox update; plus, let you report what add-ons still works after update
* [[https://addons.mozilla.org/firefox/a