The bluesky sticky header is annoying, and I haven't seen a way to just switch it off.
EDIT: solved: drag kill sticky to bookmarks on desktop browser, then access bookmark from sync'd Firefox on Android.
1. bookmark any page 2. change the url to your code 3. give it a title like !script 4. to activate, tap the address bar and type !script
The bluesky sticky header is annoying, and I haven't seen a way to just switch it off.
EDIT: solved: drag kill sticky to bookmarks on desktop browser, then access bookmark from sync'd Firefox on Android.