DNS issues on Firefox 36.0 beta1

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What steps will reproduce the problem?
1. Upgrade to Firefox 36.0 beta 1

What is the expected output? What do you see instead?

Websites are charging very slowly due to a lot of DNS requests (as seen in a 
wireshark capture).

HostAdmin change these settings in prefs.js which seems to affect Firefox beta :
network.dnsCacheEntries : 0 (default 400)
network.dnsCacheExpiration : 0 (default 60)


If you reinitialize both values, browsing is OK.
But you need to deactivate HostAdmin, otherwise on the next reboot, both values 
will be set to 0.


What version of the product are you using? On what operating system?

HostAdmin 1.4.9.2
Firefox 36.0 beta1
Windows 7

Original issue reported on code.google.com by [e-mail] on 21 Jan 2015 at 11:00