Does what it says on the tin, would be nice though to have the ability to whitelist sites, like just localhost, instead of all domains.

Great that you can modify "Access-Control-Expose-Headers", too! Very useful.

Does not work as of September 2023.

With this addon youtube playback can't start since June 2023

I doesn't work

It's working good. But some sites work incorrect when extension enabled. Whitelist option will be good

Woah! Finally cors extension that works!! Thank you so much mate. This is a much needed one on firefox, specially for a frontend developer. I felt hopeless, I was about to make my own but this saved a lot of time and effort! Deserves 5 shining stars!

It's promising add-on but it does not work in Firefox 86. I used the COR tests and it fails all except redirect

Work as expected. Just click on icon to enable/disabled it

Does not work for Firefox Developer 78 and Firefox 77

Does not work on FF 74.