Firefox Support Forum

I don't know how I manage to turn this feature on and can't figure out how to turn it off without having to close the browser entirely. I assume it is some type of developer tool I accidentally enable.

It displays a green grid over webpages and purple outlines on window features like the scrollbar and address bar. I don't have a screenshot because I can't figure how to turn this on.

It seems I can easily turn this on by accident with a keystroke but no easy way to turn it off.

Hello,

I am wondering what if anything regarding settings, customization, data, etc is likely to break if I perform this update? THis has happened in the past and is why I turned auto update off. Should any intermediate updates be done to stepover/convert any of the data structures to a newer format?

Thanks, Steve

I'm running Mojave 10.14.6 on a MacMini (late 2018) with 64 GB 2667 MHz DDR4 and Firefox v86.0 64-bit.

I need to disable Command+D that's currently used to "Bookmark This Page".

I need Command+D for another use.

I've searched about:config for "bookmark" and get a lot of hits, but I can't tell which one controls the setting for Command+D.

Or . . . am I barking up the wrong tree?

I want to disable Command+D.

Leaving the ability to mouse up and click Bookmarks > "Bookmark This Page" is ok.

I just need to disable the keyboard shortcut Command+D for "Bookmark This Page".

Anyone got a "howto" for this?

Thanks!