Doesn't work properly on Firefox

Question

Doesn't work properly on Firefox

Opened this issue 6 years ago · 4 comments

After installed and setup to a proper time zone the addons page https://add0n.com/spoof-timezone.html?version=0.2.3&type=install shows that on inline my time zone is London also iframe shows my real time zone but I had selected Bogota as time zone.

I did test on a new profile and shows the same issue.

Answer 1 · 2018-09-04T05:00:04.000Z

What is your OS? can you reproduce this on Chrome too?

Answer 2 · 2018-09-04T14:28:08.000Z

I tried on MacOS High Sierra and Windows 10, Chrome works fine it's only Firefox

Answer 3 · 2018-09-15T05:47:06.000Z

content-script injection in FF is not yet mature. It sometimes misses one frame. I am not sure if there is a way to fix this.

Answer 4 · 2019-06-13T05:20:56.000Z

With all due respect, I think you should add a notice that this add-on does not fight fingerprinting (at least on Firefox), because having a different DateTimeFormat depending on the frame makes your browser nearly unique (opposite effect).
PS: I have the same issue on Firefox 67.0.1.