http://graphs.mozilla.org/ doesn't work in Safari or Opera. I think the problem is use of "for each" (introduced only recently in SpiderMonkey) and using the reserved word "class" as an identifier. I use Safari for browsing while I'm crashing or rebuilding Firefox, so it's annoying for me that http://graphs.mozilla.org/ doesn't work in Safari.
This is a bug that has become invalid due to the new graph server front end. See it in action here: http://graphs-stage.mozilla.org/g2/ http://graphs.mozilla.org/g2/ And for those interested in the code: http://hg.mozilla.org/index.cgi/graphs/ We are actively working to make this the only front end and deprecate the old. See bug 429226. If the problem persists or this bug is still active please re-open or re-file.