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Fake screen size setting

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Post Posted April 7th, 2017, 4:59 pm

Somehow I managed to get SeaMonkey to send faked screen size information to sites that check it, such as Panopticlick. Now I want to remove that setting, but I cannot remember how I did it. Is there an extension or an about:config setting that does that?

therube

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Post Posted April 7th, 2017, 6:03 pm

If it were an extension, Safe Mode should tell you that.

If that doesn't do it, as a test, create a new clean Profile, the compare prefs.js between the two & see if anything stands out.
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball CopyURL+ FetchTextURL FlashGot NoScript

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Post Posted April 7th, 2017, 10:55 pm

Well, it was not an extension. I have changed so many settings in prefs.js, comparing will be a real chore, but I guess that is the only option. I remember it was a "do it or not" kind of thing, not a script.

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Post Posted April 8th, 2017, 12:36 am

Could the setting be a devtools setting or a gfx setting? I have looked through the pref settings, but I do not know the meaning of a lot of them.

therube

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Post Posted April 8th, 2017, 4:36 am

I had though about devtools, but don't really know anything about it?

What does http://browserspy.dk/screen.php say about you (compared to what you are)?


As far as prefs.js, the comparison would be more about something "standing out" rather then knowing what particular items mean. So if you compare on to the other, & your comparison program (& I'd think you'd want to use a program that allows you to "visually" compare a set of file), if a pref with "size" is highlighted, that to me "stands out" (in this case), & would be worth further investigation.
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball CopyURL+ FetchTextURL FlashGot NoScript

Tialon

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Post Posted April 8th, 2017, 8:41 am

Just a guess/shot in the dark, but isn't it possible to alter the screen size in Tools --> Web Development --> Responsive Design View?

isaacschemm
 
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Post Posted April 8th, 2017, 2:45 pm

This probably isn't it in your case, but I think the zoom setting also affects the reported screen size.

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Post Posted April 8th, 2017, 4:33 pm

BrowserSpy reports the faked size. Responsive Design View does not do anything. There is no window shown or any visible change to any part of the display.

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