Tried Firefox 4 Beta 10 on another computer altogether—the new machine in the ofﬁce. No font management software on this one, which rules out anything that could have been doing. I don’t need to say much more. The font problem is the same as on Betas 7, 8 and 9; and the fact that Google results’ pages crash the browser may be down to McAfee Site Advisor, which I have installed, according to one of the experts at Mozilla.
A few people have had a semi-related font issue (here’s one on CNet from 2009, and here is a thread on Mozilla), but seemingly not enough for Mozilla to deem it an issue they need to ﬁx. Pity the other browsers are so below par.
PS.: Discovered on the Mozilla site that a grand total of 40 people have this problem. But I am glad I found that a few folks have had this identical issue, at long last. Nothing had surfaced in the search engines before this.