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Webpage does not use all available space

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  • Last reply by Fowlerz

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Hello !

I am trying out a Linux (Fedora 39) with enhanced privacy (hardened firefox with the user.js from Arkenfox). My problem is the following : When I quit a video that was in full screen with Esc. the inner window dedicated to the webpage resizes to a smaller one such as the one seen in the screenshot.

I fixed that by going into troubleshoot mode and the window went back to its original size and then reactivated my extensions but the same problem appeared when following the process aforementioned.

Any idea what could be causing this ?

Best regards,

Hello ! I am trying out a Linux (Fedora 39) with enhanced privacy (hardened firefox with the user.js from Arkenfox). My problem is the following : When I quit a video that was in full screen with Esc. the inner window dedicated to the webpage resizes to a smaller one such as the one seen in the screenshot. I fixed that by going into troubleshoot mode and the window went back to its original size and then reactivated my extensions but the same problem appeared when following the process aforementioned. Any idea what could be causing this ? Best regards,
Attached screenshots

Chosen solution

Letterboxing is a privacy feature to make the window size less fingerprintable, you can disable it by changing privacy.resistFingerprinting.letterboxing to false in about:config.

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Chosen Solution

Letterboxing is a privacy feature to make the window size less fingerprintable, you can disable it by changing privacy.resistFingerprinting.letterboxing to false in about:config.

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Thank you very much !