mozilla-mobile
Stealth (fingerprint enable) mode issue, switch back to Focus, there is 0.2s appearing of the web-page view.
Steps to reproduce
Just as what it is described in fingerprint setting entry, when switching back to Focus via "Recent Apps", the web-page will appear for about 0.2s and then the fingerprint prompt will occupy the screen.
However, for extremely confidential content, such period of time can make user leak privacy information.
Expected behavior
After leave Focus (When fingerprint stealth mode is enabled), the active web page should not show up until fingerprint is successfully validated.
Actual behavior
When switching back to Focus, when the app windows zoom-in, the active web page will show off for about 0.2s. And then Focus become blank and fingerprint prompt will pop out.
Device information
- Android device: Issue appears on multiple device (Smartphone, Tablet) Android 11.
- Focus version: 91.1.0
Due to the stealth mode feature, screenshot or screen recording are unable to be captured.
@pocmo and @ahunt , do you think this problem is due to Focus itself or Android OS?
I was able to reproduce this on the 99 Focus Nightly (build 360630511 with GV 99.0a1-20220303094735) with Oppo Find X3 Lite (Android 11).
Reproducible with Samsung Galaxy Note 8 (Android 9) on Beta 99.0.0-beta.1.
This issue reproduces on the Focus Nightly build 104.0a1 from 7/22 on Samsung Galaxy Note 8 (Android 9). Not reproducible on Oppo Reno 6 (Android 12).
Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1802664
Change performed by the Move to Bugzilla add-on.
