Firefox 145 adds CSS {height,width}: -webkit-fill-available
#28267
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caugner
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{height,width}: -webkit-fill-available
caugner
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Oct 24, 2025
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Description
The CSS
-webkit-fill-availablekeyword is enabled in Fx by default in 145. It can be used like:It's been added back to Fx for backwards-compatibility reasons.
Test results and supporting details
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