HTML5 contextMenu unavailable from Firefox 85 #1
Description
HTML5 menus which has been available in Firefox and has been used by GMCommonAPI on Firefox, are no more available from Firefox version 85.
GreaseMonkey 4+ currently don't have the same native menu support (registerMenuCommand) as f.ex. TamperMonkey or earlier GreaseMonkey versions have/had. Hopefully problem will be solved in GM4 before the release of Firefox 85 (scheduled for 2021-01-26).
If GM4 ain't updated with a native menu-implementation, there will be no menus for Firefox 85+ users unless they change to another userscript manager (Like f.ex. Tampermonkey), or GMCommonAPI is updated with a new work-around. The later is difficult and unfortunately also unlikely to happen at the moment.