So, you're saying that:
- some people kept using Firefox because it had more powerful extensions than Google Chrome.
- these people are upset because mozilla is breaking the old extensions in favor of a less powerful alternative (still better than Chrome's, that the main point of the OP)
- then people are going to move to Google Chrome which still is the worst browser for extensions
Who reasons this way ? There are legitimate reasons for being upset (my favorite addon disapeared and that makes me sad / I need to rewrite all my addons, depending if you're a user or an addon dev), but I don't think anyone will shoot himself in the foot and use a worse (addon-wise at least) alternative just because mozilla's people are mean !
Firefox on Linux seems to me to be slower and crappier save for interesting extensions.
Enough so that I've just decided to ditch Firefox even before interesting extensions go south.