In the past, when FF was stronger, they took search deals with other engines (yahoo, bing). If their numbers go back up, it could be a viable strategy again.

Maybe I'm old, but doing the right thing on the internet has always been harder than just going with the flow. Using Linux in 2000 was very hard, using Firefox in 2001 was no walk in the park - but one gotta do what one gotta do, if one has some principles.