1701941 - The "Learn More" link of the Placed Locked Infobar is unreadable with Proton OFF

Status: NEW

(Toolkit :: Safe Browsing, defect, P5)

Description

[Simona Badau, Desktop QA]

Attachment: Screenshot.png

Affected platforms:
Ubuntu 20.04
macOS Big Sur 11.1
Windows 10

Affected versions:
Firefox 88 beta 4
Nightly 89.0a1

Preconditions:
browser.proton.enabled=false
devtools.chrome.enabled=true

Steps to reproduce:

1. Launch the Firefox browser.
2. Open the Browser Console and run the following:

ChromeUtils.import("resource:///modules/BrowserGlue.jsm").BrowserGlue.prototype._showPlacesLockedNotificationBox()

3. Observe the Placed Locked Infobar.

Expected Result:
The Infobar should be properly displayed.

Actual Results:
The "Learn More" link looks blurry and difficult to read. Please see the screenshot for more details.

Notes:
The issue is not reproducible on the latest Nightly 89.0a1 when the new Proton design is enabled(the preferences browser.proton.enabled and browser.proton.infobars.enabled are set to true)