Mac Firefox Hangs on Startup – Possible Solution

There used to be a time when it was really painful to start Firefox on my MacBook. It seemed to start normally but soon the window became unresponsive. Usually it took several minutes before I can use Firefox to browse web sites – really annoying. I searched but found people facing the same problem without a solution or response from Firefox developers (here and here).

In the mean time I was quite confused by Firefox frequently asking me to allow its access to some font file on the bootcamp partition – how does Firefox know that I installed a Windows system? More importantly, why does Firefox want to examine this just for a font?

Firefox asking to use bootcamp font

At first I didn’t think much and always allowed it to access the fonts but one day I finally chose “Don’t allow” and checked the “Do not ask me again” box. I don’t know if that is the solution but several days later I noticed that Firefox started as quickly as before!

If you’re suffering the same problem, and also asked by Firefox the same question, please try this and comment below. But I don’t know what to do if you already checked the “Do not ask” box and clicked “Allow”…

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