Firefox “Looking up…” takes ages…

This may be a DNS problem in Firefox.

Check out these articles….

Firefox: “Looking up…” Takes Too Long [RESOLVED {for sure this time}] 

and the MozillaZine article:

Network.dns.ipv4OnlyDomains

From MozillaZine:

IPv6 is a new version of the Internet Protocol that will be used in the future instead of IPv4. Not all web servers correctly support IPv6, and this can lead to connection failures and delays in loading websites. This preference controls which servers to use IPv4 on even if IPv6 is enabled

Possible values and their effects

A comma-seperated list of domains to connect with IPv4 instead of IPv6. Default value is .doubleclick.net; in trunk builds this has been changed to an empty string.

Caveats

Recommended settings

The default setting for this preference does not mean that Mozilla will ever contact doubleclick.net (an internet ad company) if it is not requested, it just specifies which IP version to use if it is requested. The .doubleclick.net address was originally added because their DNS server was broken and caused delays in page loads; this has since been fixed. If you wish, you may delete this preference with no ill effects.

Save Windows and Tabs When Restarting Firefox

Some great tips on how to save your tabs when you restarting Firefox:

  1. Use the Restart Firefox extension.
  2. Set Firefox to save all windows and tabs, every time.
  3. Set Tab Mix Plus to save all windows and tabs (if you are using the Tab Mix Plus sessions instead of the native Firefox one.)

http://www.howtogeek.com/howto/internet/firefox/quick-tip-save-windows-and-tabs-when-restarting-firefox/

Save Windows and Tabs When Restarting Firefox

Some great tips on how to save your tabs when you restarting Firefox:

  1. Use the Restart Firefox extension.
  2. Set Firefox to save all windows and tabs, every time.
  3. Set Tab Mix Plus to save all windows and tabs (if you are using the Tab Mix Plus sessions instead of the native Firefox one.)

http://www.howtogeek.com/howto/internet/firefox/quick-tip-save-windows-and-tabs-when-restarting-firefox/

Study forecasts Firefox will have more market share than any Internet Explorer version

This study forecasts Firefox will overtake Internet Explorer 6 as the leading version of any browser. If true, this will be the first time that any none-Microsoft browser version has had majority market share since Netscape.

http://www.abraxor.com/research/firefox-leads/