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 browser extension called FediAct which lets you directly interact with other servers' websites without having to log in again or copy/paste addresses.
Chrome:
https://chrome.google.com/webstore/detail/fediact/lmpcajpkjcclkjbliapfjfolocffednm
Firefox:
https://addons.mozilla.org/en-US/firefox/addon/fediact/
More info about it at:
https://github.com/Lartsch/FediAct
The developer of FediAct is @lartsch