When i use all of my internet limit it limits my internet, on firefox websites are unusable. Is there browser for android with following features:
Preferably on F-Droid
Just load text
Edit:
For now solution is firefox + ublock (adnauseum) and in settings of ublock check block JavaScript and block elements over 10kb
Depends on the app. Foss apps either periodically check for new messages or keep an active connection to the server to check for new messages. Some use Unified Push to reduce the battery drain of a constant connection.