Limited utility.

Compiled and installed native component on kubuntu 19.04; installed ff addon from this site.
FF 69.0.1 64-bit.

Tried to open desktop web links from different activities.

When there is a ff window in current activity, link opens as a tab in the window. When there is no firefox windows in current activity, but firefox runs in another activity, then current activity switches and link shows as a tab in an existing firefox window, as it were without the extension.


Also, with this addon active, firefox attempts to open http://example.org on start.