Have you ever interacted with the website of another Mastodon server and found yourself having to re-enter your username and password, again and again?
There's a new web browser extension called FediAct which allows you to log in with your account once, and then you never have to log in again.
You can install it from Firefox Addons and the Chrome Webstore, including Android versions. There's more info about it at:
➡️ https://github.com/Lartsch/FediAct
The developer of FediAct is @lartsch