When selecting the Firefox extension (not private window):
Error: Could not connect to the Joplin application. Please ensure that it is started and that the clipper service is enabled in the configuration.
I removed all other extensions (I use a lot of tracking extensions) but makes no difference.
MacOs Mojave 10.14.6 (18G9216)
Web Clipper Extension
Joplin for Desktop
2.4.9 (prod, darwin)
Apologies - this maybe a newbie issue. But couldn't find any answers here or elsewhere.