Windows 10 user with issues on firefox developer edition about paxmod

[numirias]

Thanks for reporting!

I think I can reproduce the issue in FF61+. I'll let you know when I got it fixed.

That is very strange @hashburger420 because I'm on Windows 10 (1803) too... have you set extensions.legacy.enabled to true?

[numirias]

@Icejr That option shouldn't be required anymore if you're using paxmod 1.4. However, I think there is another issue with more recent FF versions which I'm currently investigating. It also seems to affect other extensions.

[numirias]

@nt1m Sorry to bother you here. Are you familiar with any recent API changes for inlined webextension experiments?

With FF61, paxmod stopped working, and I can reproduce the same problem with an unrelated extension which leads me to believe this might be due to a change on Mozilla's end.

If you install paxmod in most recent FF61 you get:

TypeError: browser.stylesheet is undefined

(Curiously, this error does not occur when testing the extension via web-ext, only when installing the .xpi manually.)

The error indicates that browser.stylesheet isn't available (that's the inlined experiment API) but I can't figure out why it stopped loading the API.

Also I get an equivalent error when trying this extension. The extension ships an experiment API called tps and after installing it raises:

TypeError: browser.tps is undefined

Do you have a tip what might cause this or how to investigate?

[numirias]

Okay I investigated this and @Icejr was right.

For some reason you initially need to set extensions.legacy.enabled to true. Then re-install paxmod. Otherwise, Firefox doesn't detect the bundled API experiment. I still believe this might be due to a change on Mozilla's side.

[numirias]

Sorry for the noise everyone, it seems extensions.legacy.enabled was always a requirement. I added it back to the readme.

@hashburger420 Do you mind checking if the installation works for you now?

[hashburger420]

I got it working after doing some non-poweruser fiddling now, had to re-open the dev browser about 3 times over. After removal of paxmod and readdition, restore defaults appeared to do nothing until re-initiating the browser a 3rd time, probably due to not having a fresh install. But it works now.

[nt1m]

@numirias Yes, the legacy add-on pref needs to be enabled. See: https://searchfox.org/mozilla-central/rev/f30847c12e5fb13791401ed4330ced3e1b9c8d81/toolkit/components/extensions/Extension.jsm#1417-1420