While I can understand that the switch to the new system was necessary, I hope they improve the new extension functionality a bit further. One negative thing t

While I can understand that the switch to the new system was necessary, I hope they improve the new extension functionality a bit further. One negative thing that I noticed that extensions don't seem to be able to interact with the tabs before those have largely (or completely?) loaded - for instance I can't use mouse gestures in a tab that's currently loading or interact with the vimperator replacement (Vim Vixen). Is that inherent to the new system with the extension system having lower priority than the page rendering or is it just those specific extensions I use? Another thing that would be nice to fix is extensions (at least those that I have tested) seemingly not working in Firefox-internal pages like about:addons.