[hendersoon]

Not exactly, you can have multiple blocklists limited to 50k entries apiece. Many Safari content blockers support that.

Safari content blocking (and thus Chrome v3 manifest blocking) basically works OK at blocking ads today. The problem is this is an arms race, and as the advertising agencies come up with inventive ways to evade these strictly controlled content blocks, they have no real way to adjust.

At that point we'll need to rely on Apple or Google to add new features specifically to support blocking ads. Google seems particularly unlikely to do that. To say the least.

And even if they do, there will be long periods before new browser releases are available with those features, and then the blocker developers need to support them.