No documentation at all, and seems all Match types except option "All" are not working.
Also, it does not allow to modify more than one header in one rule.

完美

not working with fenix, Firefox for Android

好用，感谢老哥
之前靠某referer扩展来改，结果遇到导致fx无法打开弹出窗口请求的bug
去这个modifier扩展gayhub提issue，结果dev不按步骤复现瞎鸡巴搞复现失败，还急吼吼地嚷着我没问题没有bug然后把issue关了。结果指出步骤问题他复现成功了又说是fx的问题，至今装死没有reopen，遇到这种智障我也是服的
还好还有你的扩展可以解决问题

I love You

I love you!
Thanks