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Full screen dialog box annoience

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Every time full screen is initialized, a dialog box that mentions ESC as a key to exit full screen pops up obstructing the page for a few seconds. How can I get rid of this?

Every time full screen is initialized, a dialog box that mentions ESC as a key to exit full screen pops up obstructing the page for a few seconds. How can I get rid of this?

Chosen solution

You can adjust the timing of the warning to either short or not at all:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

(2) In the search box above the list, type or paste full-s and pause while the list is filtered

(3) Double-click the full-screen-api.warning.delay preference and enter 0 (that's a zero)

(4) Double-click the full-screen-api.warning.timeout preference and enter a length of time such as 0 for no message or 250 for a quarter of a second (you can play with this as needed)

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Chosen Solution

You can adjust the timing of the warning to either short or not at all:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

(2) In the search box above the list, type or paste full-s and pause while the list is filtered

(3) Double-click the full-screen-api.warning.delay preference and enter 0 (that's a zero)

(4) Double-click the full-screen-api.warning.timeout preference and enter a length of time such as 0 for no message or 250 for a quarter of a second (you can play with this as needed)