1586756 - Private Mode Detection

Status: RESOLVED DUPLICATE of bug 781982

(Firefox for Android Graveyard :: General, enhancement)

Description

[Luker]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

go to Private Window and go to www.wired.com wait to load then scroll down and open some Popular news from right side, for example open 3 link on Popular news in new private windows.

Actual results:

the site detect we are in Private Window(Private Mode) and not allow to doing anything expect sign up also in normal mode there is no problem.

Expected results:

like Chrome, Firefox Must Have a function to avoid Detection of Private Window(Private Mode) like obfuscation and this is better for Privacy in first place and Security in 2nd Place.

Comment 2

[Luker]

How say is fixed??
Did you even try or just a kidding ?

Comment 3

[(no longer active)]

(In reply to Javad ahmadi from comment #2)

How say is fixed??
Did you even try or just a kidding ?

I didn't say the bug is fixed, this is caused by the same underlying issue as bug 781982. The site is using the fact that IndexedDB isn't supported in Private Browsing mode right now to detect whether whether you're browsing in private mode and show the sign up prompt. The same technique is used on many other websites. We don't need multiple bug reports to keep track of the same underlying problem, and we duplicate various other forms of a bug report to the original report usually for tracking purposes.

For your information we have started working on fixing this problem a while ago, see bug 1562669.