I verified this for Ubuntu GNOME 16.10.
First, I verified that I could use https://extensions.gnome.org/local in Firefox to activate and deactivate the Applications menu.
Then I installed the -proposed chrome-gnome-shell and repeated the test successfully.
Then I installed Firefox 52 from https://launchpad.net/~mozillateam/+archive/ubuntu/firefox-next
The page didn't work. Then I installed the Firefox addon from addons.mozilla.org and then I completed the test successfully. No browser restart required after installing the addon.
I verified this for Ubuntu GNOME 16.10. /extensions. gnome.org/ local in Firefox to activate and deactivate the Applications menu. /launchpad. net/~mozillatea m/+archive/ ubuntu/ firefox- next
First, I verified that I could use https:/
Then I installed the -proposed chrome-gnome-shell and repeated the test successfully.
Then I installed Firefox 52 from https:/
The page didn't work. Then I installed the Firefox addon from addons.mozilla.org and then I completed the test successfully. No browser restart required after installing the addon.