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Firefox very slow in 10.6.5

8022 Views 18 Replies Latest reply: Nov 18, 2010 1:07 PM by levytv RSS
  • levytv Level 1 Level 1 (20 points)
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    Nov 18, 2010 1:16 AM (in response to drdocument)
    i have another thought. i was using open dns and besides firefox being slow it was getting many many dns errors. changed router and network settings to google dns - 8.8.8.8, 8.8.4.4 and everything seems much faster. you must reboot computer and router after changing settings.
    mini 2.26, Mac OS X (10.6.5)
  • Bjoern Stolze Calculating status...
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    Nov 18, 2010 6:19 AM (in response to drdocument)
    After updating to 10.6.5 I had a slow loading issue only with firefox 3.6.12 (safari worked well), which was reported before some time ago with an earlier osx update. It is related to very slow dns lookups.

    The solution was to change the firefox configuration setting "network.dns.disableIPv6" to "true". To do that, type "about:config" in your asdress field and search for "dns". Doubleclick the setting above to change the value to "true". Firefox should perform much faster when loading pages now.
    2.66 GHz Quad-Core Mac Pro (2009), Mac OS X (10.6.5), 12 GB DDR3, ATI HD 4870 + NVIDIA GT 120
  • levytv Level 1 Level 1 (20 points)
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    Nov 18, 2010 11:17 AM (in response to The hatter)
    i changed dns to google dns 8.8.88 - 8.8.4.4 - restarted router and machine and now no dns errors and firefox speed has returned.
    mini 2.26, Mac OS X (10.6.5)
  • levytv Level 1 Level 1 (20 points)
    Currently Being Moderated
    Nov 18, 2010 1:07 PM (in response to levytv)
    bjoern stolze about:config tweak also helped. thanks bjoern.
    mini 2.26, Mac OS X (10.6.5)
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