Firefox update to 57.0a1 stops Stylish working

[Anaerin]

Aside from being labelled a "Legacy" plugin (which would require a rewrite), Stylish is no longer working - The button appears and it's menu works, but it's not detecting or applying any already defined styles, the "Write new style" submenu does not open, and "Manage Styles" does nothing.

The browser console is reporting "TypeError: stylishOverlay is undefined" in the "onpopupshowing" function.

This plugin has also not been updated in over a year. Is it still being worked on, or is this abandoned, and if it is abandoned, what alternatives are available?

[DanaMW]

If I read mozilla correctly 57 begins using the new web extension type addon. So there is the google version of stylish you could try. Or tampermonkey to load the scripts as a userscript. At least for now.

[Anaerin]

It uses WebExts, but it still loads and runs original addons (uBlock Origin is a "Legacy" addon, and still working). Fortunately, I found Stylus, which appears to be working perfectly.

[mikhoul]

Here's the Alternative for Firefox and it's lot better IMO: https://addons.mozilla.org/en-US/firefox/addon/styl-us/

Regards

[Loirooriol]

Stylus does not work, clicking the save button does nothing. So I fixed fixed all Sylish issues in #319 and now it works perfectly on latest Nightly 57 (as a legacy extension).