Hi Brian, very good idea and nice work!

I have to agree with 2y old comment of user 13596644 which states (with a reorder of importance for my use case and added comments):

- keep the search bar open when going to another tab and then coming back to the one searched
- - this really makes it almost unusable

- add scroll bar coloring for where the searched results are, similar to firefox native search
- - this would help tremendously finding appropriate information on long text websites

- add option to keep the same set of searched words across tabs / pages when clicking on the icon
- - maybe also display a list of last used searches with option to "X" some of them when mistyped or not needed anymore

- add (customizable) keyboard shortcut
- add option for case-sensitivity

Not sure if you can contact me as a developer, but in case you need testing of the app, I would like to help.

Thank you for the effort!