It seems a lot of Mac users (If not all) are finding pinch to zoom disabled by default on Firefox 4. This is annoying but perfectly solvable. [http://support.mozilla.com/en-US/questions/777886#answer-131867 Here is a great forum thread]. My question, however, is this: Is it safe to manually enable pinch to zoom or has the Firefox development team chosen to disable it by default for stability or other issues? Are there any side effects / undesired consequences to enabling pinch to zoom? Also, is this actually a default for Mac, or a symptom that something didn't go quite write on my install? Any information would be much appreciated Chopo