

Note: This is a temporary solution, because the multi-process mode will be mandatory at some point and the preference will be removed. Unfortunately Firebug is incompatible with that mode.

These settings control whether Firefox works in multi-process mode (separate processes for its UI and the websites). This bug got fixed in Firebug 2.0.19 by removing the option (so there's just the Inspect Element option left, which works as explained above).Īs mentioned in my answer to a related thread, you may be able to reenable Firebug by setting the preferences, .1 and .2 to false via about:config. There is also a bug related to the Inspect Element with Firebug option, which opens the DevTools, but doesn't actually select the inspected element. As I wrote in the Firebug discussion group, that the element is selected first before the actual element you inspected is a bug and I've already filed a bug report for it.
