-1 to the logic of switching "if they implement drm": If your drmized content isn't available in FF, you'll have all incentives to come back. Unfortunately.
No I won't. I'll either find an uncrippled version of the content -- for example on TPB -- or I simply won't look at it.
DRM is a perversion of the WWW, and Berners-Lee is wrong to allow his invention to be sullied in this way. The web has been successful because it consists of open standards which means anyone can build on it. Just as tcp/ip is an open standard and Berners-Lee didn't need anyone's permission to build http and html. Take away that openness, and you'll be destroying something very valuable.
If the MAFIAA don't like the open web and want a locked-down system, let them build their own. I'm sure it'll be every bit as successful as Windows RT or the Ford Edsel were.