Please add an option to edit response headers as well and export and import rules so I can replace "Header Editor", I will be watching for updates

Can't edit saved settings

Works well, but for the lack of ability to edit a rule or even copy/paste the existing fields.
The fact that you can't edit a header to fix an issue makes this plugin a pain to use.
Only acceptable (compatible) headers tool add-on for Firefox Quantum.
But it could have a better UI to manipulate the headers modification rules.
Still looking for a better implementation for Firefox Quantum.

It has promise but there are obvious issues. One simple problem which should be easy to fix is the ambiguity of knowing if its enabled or disabled in the status bar...currently it uses a red icon to indicate its off(?) and greyed out to mean its on. Seems very strange and hard to remember. Why the author didn't just use the switch look as he did for each header entry is beyond me.

I doubt the author will read this though.

It is too difficult to configure

Thanks for the addon but only add function works.

Tried contacting you using your website bug report but it always gives me an error after submitting.