Truer than ever. What other browser engine is there beside safari on macs? Not even Microsoft found it worthwhile to maintain an independent browser engine - in this world firefox is an open-source gem and instead of bringing it down for whatever reason we should try to preserve it.
Google is currently facing a search monopoly lawsuit where their payment to Mozilla is being used as evidence against them. If they were funding Mozilla to prevent a browser monopoly, the strategy certainly backfired.