Whitelist websites for WebRTC on Firefox

[amitkot]

Prerequisites

• I verified that this is not a filter issue
  • Filter issues MUST be reported at filter issue tracker
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• I tried to reproduce the issue when...
  • uBlock Origin is the only extension
  • uBlock Origin with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uBlock Origin
• I checked the documentation to understand that the issue I report is not a normal behavior

Description

When disabling WebRTC via uBlock Origin, when whitelisting a website the WebRTC remains blocked.
This makes is hard to use websites that require WebRTC, e.g. Google Hangout.

A specific URL where the issue occurs

e.g. https://meet.google.com

Steps to Reproduce

1. Install uBlock Origin
2. Configure > Settings > enable "Prevent WebRTC"
3. Browse to Google Hangout.
4. Whitelist the website.
5. Try to open a session

Expected behavior:

Hangout session opens successfully.

Actual behavior:

Session does not open, due to blocked WebRTC. To verify, you can alternatively whitelist https://www.privacytools.io/webrtc.html and see that WebRTC stays blocked.

Your environment

• uBlock Origin version: 1.17.0
• Browser Name and version: Firefox Developer Edition 63.0b10
• Operating System and version: macOS 10.13.6

[gorhill]

"Prevent WebRTC from leaking ..." is a global setting, not a per-site setting, so what you ask is not possible.

See gorhill/uBlock#3225.