Bugzilla issues affecting uBlock Origin webext #2795

A placeholder issue to track all open issues on bugzilla.mozilla.org affecting the webext version of uBlock Origin:

• ~1367494: [BrowserAction] properties supported on desktop but not android should warn rather than prevent installation~~
  • This is what is preventing uBO/webext from being installed on Firefox for Android.
  • uBO/webext can't be released on the stable channel of AMO as long as the fix is not in a stable release of Firefox for Android.
  • Update: fixed with https://bugzilla.mozilla.org/show_bug.cgi?id=1367494, so not a showstopper anymore.
• 1360285: URL values not normalized to ASCII in WebExtensions API
  • I will add workaround code in uBO until issue is fixed.
  • Test page: uBO does not list all hostnames on that page without the workaround code.
  • Update: workaround code works just fine, not a blocking issue.
• 1313401: Background Page LocalStorage is cleared along with site storage
  • This prevents uBO from remembering some UI preferences, but especially this breaks "Advanced settings".
  • Update: I do not consider this issue to be a showstopper for publishing webext-legacy on stable channel on August 22nd.