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March 24th, 2008 - brad's life [entries|archive|friends|userinfo]
Brad Fitzpatrick

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March 24th, 2008

Firefox + PAC considered harmful [Mar. 24th, 2008|09:14 am]
Brad Fitzpatrick
Update to my previous FireFox rant:

After talking with Mike Shaver and sending him some debug info, it turns out the problem is PAC files. Firefox runs all Proxy Auto-Configuration scripts synchronously, blocking the entire UI while things like DNS resolution run in JS (which is more noticeably painful over a slow connection).

Shaver says this won't be fixed until after FF3.

In the meantime, find another solution to your complex proxy rules... localhost proxy w/ PAC logic, ssh tunnels, etc.

As jesserud pointed out, it might be this bug, if you want to track it. (Update: And indeed, Shaver confirms that's the bug, and this comment says what needs to be done.)

Good to know what it is, at least.
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