thank you , this is awesome. took a little work to get a working redirect, but the help-link was useful.
Required a restart to work.

Defaults to "wildcard". In order to use regex, change pattern type to "regular expression".

I tried to setup a rule with:

from=^http://www.youtube.com$
to=http://www.youtube.com/feed/subscriptions.

Firefox complains that there is an invalid inredirect. I removed the rule, disabled and uninstalled the extension, but the invalid redirect persists, even after a restart. My installation is broken :(

It does what's expected and has intuitive settings. I am happy!

doesnt work

Заменяет url только в адресной стране, если будет встречаться в коде страницы, замены не будет!

Works great with the simple rules I want for mobile sites I don't ever want to see on desktop. I typically leave more complicated rules to uBlock Origin, but it's nice to know I have this quick n' simple interface for that too.

Das Addon funktioniert hervorragend. Mit älteren Versionen vom Android Firefox auch.

Изумительное дополнение! Позволяет автоматически загружать русскоязычные версии сайтов, вместо украиноязычных. Настраивается не сложно. Работает безупречно. Редиректы мгновенные!