Tab Proxy from right mouse button doesn't work

[Pitel]

Fresh FoxyProxy installation in Firefox, never used this extension before.

1. Have some proxy configured, but have it disabled
2. Open https://getfoxyproxy.org/geoip
3. It shows my real IP and location
4. Press right mouse button -> FoxyProxy -> Tab Proxy -> select your proxy
5. Ctrl + F5
6. It still shows real IP and location
7. Open extension popup -> More -> Tab Proxy -> select your proxy
8. Ctrl + F5
9. It shows new IP and location

So the Tab Proxy feature works, just not from the right mouse menu.