Can I write scripts locally?

Please add dark theme.

Script work only partially. (((

It's failing a lot, Greasemonkey is "removing" my scripts, and failing to restore the backup.
I had to migrate to Tampermonkey, I'm not having problems with it, but I hope you will identify the problem with Greasemonkey and fix it soon.

Many functions disappear. Tampermonkey is better.

Since the release of WebExtension version Greasemonkey became significantly slower when dealing with heavier scripts. If core functionality is getting there (though really slowly) performance is terrible comparing to non web-ext version or Violentmonkey.

FF ESR, Greasemonkey 4.1 - non usable.

Yess

doesn't work
change to tampermonkey and work well

bunicel

good

Version 4.1 is incompatible with Firefox 52.5 ESR.

I've downgraded back to the one which is compatible.

I've been using this for far too long, but this new version is totally screwed. For example if you change the @name tag of a script it won't update it in dropdown most of the times and it WON'T save it. Also if you add a @match clause after you changed it's name it won't save the script. This used to be an awesome add-on but right now is only an unusable add-on. Anyway thank you for your work keeping this alive.