не хватает работы с прокси-листами, а именно 1) отслеживание страны 2) поиска по странам внутри списка 3) проверки работоспособности прокси-листов по локальным спискам или из интернета
This is the limitation forced by Mozilla that only a hand picked add-ons can be listed for installation. Hopefully this limitation will be lifted, until then there is no other solution, just don't update the browser.
Just the add on I needed to make my workflow easier! I use it to proxy connections to specific websites through a SOCKS5 proxy. Without this addon I had to manually enable/disable my proxy through the proxy settings.
