2049723 - Trackers are being displayed as blocked in the Protection report without closing the page

Status: RESOLVED INVALID

(Firefox :: Protections UI, defect)

Description

[Alexandru Trif, Desktop Test Engineering [:atrif] [PTO 06-10 July, please ni? :mboldan]]

Attachment: protection_report.gif

Found in

• 154.0a1

Affected versions

• 154.0a1 (2026-06-19)
• 153.0b3
• 152.0.2

Tested platforms

• Affected platforms: Windows 11, macOS 15
• Unaffected platforms: none

Preconditions

• ensure Strict option is enabled for Enhanced Tracking Protection

Steps to reproduce

1. Open about:protections
2. Open bbc.com
3. Refresh about:protections

Expected result

• There are no trackers shown that are blocked by Firefox without closing the BBC page.

Actual result

• There are trackers blocked by Firefox without closing the BBC page.

Regression range

• Will search for one.

Additional notes

• Attached a screen recording.
• Please close if this is the expected result. This manual test is failing: https://mozilla.testrail.io/index.php?/cases/view/448309

Comment 1

[Dianna Smith [:diannaS]]

:timhuang could this have been caused by bug 2030052?
:atrif is it still reproducibile with browser.contentblocking.database.flushOnQuery.enabled turned to false?

Comment 2

[Alexandru Trif, Desktop Test Engineering [:atrif] [PTO 06-10 July, please ni? :mboldan]]

Hello! I tried with Firefox 154.0a1 (2026-06-23) with browser.contentblocking.database.flushOnQuery.enabled turned to false on Windows 11 and macOS 26, and the issue is not reproducible. The trackers only register after the page is closed, as before, and not on page load. Please close this if this is expected after bug 2030052. Thanks!

L.E: I also ran mozregression and got the following pushlog: https://hg-edge.mozilla.org/integration/autoland/pushloghtml?fromchange=b22f15d1bd2ad43a4bcdf173a64ed8d7c8a26c8a&tochange=252964da4b82abf22a7df229d01063d24b68f0d5. Leaving this open for confirmation that this is intended, even though it appears to be.

Comment 3

[Tim Huang[:timhuang]]

This is an intentional change in how we record tracker counts in the tracking Database. After bug 2030052, we update live counts to the Database whenever the database gets accessed.