Make compatible with firefox 57+

[vincekd]

Currently it's marked as legacy and will be disabled on nightly and next month on beta.

[ghost]

I second this request, AlwaysAsk is currently my last extension which hasn't been updated to support 57+. I just hope the functionality can be preserved with the new extension limitations.

[kquinsland]

+1 from me as well. Paging @zpao for clarification; is this abandon ware?

[zpao]

It's not abandonware but it is open source.

I haven't had any time to see how possible this is with the extensions API. Hopefully soon but can't make any promises.

[zpao]

nsIObserverService, which was the main way this worked, is no longer accessible. Nor can I read prefs (or prompt?). Maybe it's still possible to get something with some of the functionality but I'm not hopeful.

[coderanger]

@zpao Indeed :( The closest you can get with WebExt is to override the ctrl+q and cmd+q key sequences. You can either leave them permanently disabled (a la https://addons.mozilla.org/en-US/firefox/addon/disable-ctrl-q-and-cmd-q/) or I've seen some people trying to work out ways to copy the Chrome style "press twice within 5 seconds to really quit" (though the prototype was very broken, but could be fixed) by using timers to attach and detach the keyboard shortcut.

[kquinsland]

@zpao No worries! The last time i did any major JS development, jQuery was just beginning to take root... so i dont think you want me opening any PR's :).

also, from what @coderanger was saying, it sounds like there's work that needs to be done on the mozilla API side before a good solution can be implemented...

[vincekd]

since there's no way to do this with the WebExtensions API, it might be worthwhile to open a feature request with Mozilla. There was one many years ago, but they closed it won't fix because extensions could handle it.

[coderanger]

There is actually an about:config item for this, it just hasn’t worked in a long time.

[vincekd]

I believe the setting only worked(?) when there were multiple tabs open.

[zpao]

@vincekd Yea, I tried to write this inside Firefox once, am CCed on that bug (though not reading bugmail). https://bugzilla.mozilla.org/show_bug.cgi?id=565567 for those interested. I think it might get some renewed interest now that it's not possible for extensions to handle this.

@coderanger Yea, I used to work on all of this code inside Firefox. The complicated mess of settings and exact conditions to trigger a prompt is part of why I made this in the first place.