Unexpected padding around HTML document on all pages
Running FF 107.0.1 on Mac 10.15.7 and there is unexpected padding around each website I visit. I've disabled all browser extensions. I'm using the default theme. I've tried restarting Firefox. I've tried restarting the computer but the issues seems to persist. I do not see the same rendering behavior when loading these websites on Google Chrome. I'm including screenshots of what I'm seeing.
Izabrano rješenje
Did you enable the optional privacy.resistFingerprinting feature in about:config? It has a letterboxing function that is a little tricky to disable. If you want to try it:
(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.
More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.
(2) In the search box in the page, type or paste privacy.resistFingerprinting.letterboxing and pause while the list is filtered
Firefox should display a bar with o Boolean o Number o String and a plus sign.
(3) Keep the selection on Boolean and click the plus sign to create a new preference
(4) If the preference value is true, clock the toggle button or double-click the preference to flip the value to false
That is from Reddit, I have not tested it myself. Any difference?
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I've checked this on another computer running FF 107.0 on Mac 11.6 and I'm seeing the same behavior.
Still experiencing this with FF 108.0.1 with all extensions disabled.
Odabrano rješenje
Did you enable the optional privacy.resistFingerprinting feature in about:config? It has a letterboxing function that is a little tricky to disable. If you want to try it:
(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.
More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.
(2) In the search box in the page, type or paste privacy.resistFingerprinting.letterboxing and pause while the list is filtered
Firefox should display a bar with o Boolean o Number o String and a plus sign.
(3) Keep the selection on Boolean and click the plus sign to create a new preference
(4) If the preference value is true, clock the toggle button or double-click the preference to flip the value to false
That is from Reddit, I have not tested it myself. Any difference?
Yes! That was it! Thank you. I had implemented a bunch of privacy changes based on a guide but hadn't realized that it would letterbox the body of every page. Makes sense but I had missed that. Much appreciated.