I have to say I HATE FF 57, all the great addons dont work anymore! So sad.
There was two great addons…First was called “Double click closes tab” It gave the ability to Double or triple click anywhere in an open tab to close it (Made browsing much faster)
The second one was called “Sidebar auto Show/Hide” It allowed me to keep the sidebar open but hide it when I wanted.
Sadly these two great addons were forgotten and unusable after FF 56.
PLEASE…Someone/anyone who can please re-make one or both of these two amazing addons compatible with FF 57…asap PLEASE!
Thank you in advance