[Whitelist]
1. Add FQDN or .FQDN you want to ignore. Click "Save".
2. Open new tab and visit whitelisted website.
(.mozilla.org will allow mozilla.org and *.mozilla.org)

Auto-remove whitelisted domain if it is no longer use MITM services
(Add-on will notify you)

[Advanced]
Ignore 3rd party resource (not recommend)
Change whitelisted website's title, favicon, and website border
I don't like Man-in-the-middle attack.

Also detect:
Incapsula MiTM
Google's Project Shield MiTM
Sucuri MiTM

When MiTM attempt is detected:
Show security warning page
Just change title, favicon, and website border
Cancel request immediately