1527872 - [Content Blocking] Cryptominers and Fingerprinters options do not retain their ON status after changing blocking settings

Status: RESOLVED WONTFIX

(Firefox :: Protections UI, defect)

Description

[Peter Magyari (Desktop QA)]

[Affected versions]
Firefox Nightly 67.0a1

[Affected platforms]
Windows 10 x64
Ubuntu 16.04
macOS 10.13

[Prerequisites]
Launch Firefox with a new profile.
Go to about:config and set the following preferences to TRUE:

privacy.trackingprotection.cryptomining.enabled
privacy.trackingprotection.fingerprinting.enabled
browser.contentblocking.cryptomining.preferences.ui.enabled
browser.contentblocking.fingerprinting.preferences.ui.enabled

Navigate to about:url-classifier, find the mozilla-row under the provider section and press trigger update.

[Steps to reproduce]

1.Navigate to the about:preferences#privacy page and check that under the Custom setting every option is set as ON
2.Change the setting to Standard/Strict.
3.Change it back to Custom.

[Actual results]
The options "Cryptominers" and "Fingerprinters" are now set as OFF.

[Expected results]
The options should have stayed the same as they were set before changing settings.

Comment 1

[Johann Hofmann [:johannh]]

The options in "Custom" should reflect the settings the user had active before switching to Custom (which is their "Standard" or "Strict" settings). This, to us, feels like the most transparent solution to users (who may not switch back to "Custom" immediately but after several weeks).