I recently decided to switch back to Firefox, having been a Chrome user for a number of years. When I had last used Firefox in earnest, working with dev tools was all about the Firebug extension. Firefox did have some in built tools, but at the time they weren’t as strong as Firebug or Chrome’s dev tools. On my return I found things have changed!
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CSS Grid is beginning to radically change how web design layouts are made, and for the better. As far as I know, at present the only inspector for CSS Grid is found in Firefox’s dev tools.
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Activate from the Web Developer menu, or in the Developer Toolbar enter the command eyedropper.
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