Hi everyone, I was having this problem for over 2 weeks. I reverted back to an older version of Firefox just now.
I am currently using Version 109.0.1 (64-bit) and I just completed a task, no strange search bar and Orange highlight has returned everything is working like normal.
This is where I got the older version:
You will need to install the plugin and login again once you open this older version and make sure to go into update settings and stop it from updating.
Hopefully this fixes everyones problem and you guys can get back earning again!