Open Bug 1658044 Opened 4 years ago Updated 8 months ago

Remove support for using the Level 2 blocklist with tracker blocking and remove list chooser UI

Categories

(Firefox :: Protections UI, enhancement, P3)

enhancement

Tracking

()

People

(Reporter: englehardt, Unassigned)

References

(Depends on 3 open bugs)

Details

(Keywords: priv-triaged)

Copied from Bug 1657679 Comment 2. I suggest we entirely remove the list chooser UI and force Strict mode to use the Level 1 list for content blocking. We know that using the Level 2 list for content blocking has caused a lot of site breakage, which led to us deprecating it in Bug 1568900. A recent change to the blocklist has made the breakage even more widespread: https://github.com/mozilla-services/shavar-list-creation/issues/153, to the point where this config will break any site that uses the cloudfront CDN.

The list chooser was broken again in Bug 1663750.

See Also: → 1663750
Depends on: 1628808
Depends on: 1663777
Depends on: 1663785

Our deprecation plan:

  1. Add Telemetry (Bug 1663785)
  2. Force the list back to Level 1 when users are in Strict mode / switch to Strict mode (Bug 1628808)
  3. Determine our messaging / migration strategy depending on the number of users that still have the Level 2 list enabled.

Given that this will take a least a couple months, we should also add automated tests to ensure that the list chooser keeps working until we've fully removed it (Bug 1663777).

Priority: -- → P2
See Also: → 1695546
Keywords: priv-triaged
Priority: P2 → P3
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