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Firefox cannot open/reload any websites after resuming from a system standby. I have to close the current window and start a new session, then it works again


I am using Firefox v 13.0.1 (Mozilla Firefox for Ubuntu canonical 1.0) on Ubuntu 12.04 LTS. Whenever my system resumes from standby I am not able to open/load any webpages in the Firefox session that was already running before the standby. I don't get any error message, but the page doesn't load at all. If I close the session and start a new one everything works fine.

Additional System Details

This happened

Every time Firefox opened

Installed Plug-ins

  • The Adobe Reader plugin is used to enable viewing of PDF and FDF files from within the browser.
  • ICA Plugin (Linux) Version (/opt/Citrix/ICAClient/wfica)
  • Net iD
  • This plug-in detects the presence of iTunes when opening iTunes Store URLs in a web page with Firefox.
  • Shockwave Flash 11.2 r202
  • The IcedTea-Web Plugin executes Java applets.
  • The Totem 3.0.1 plugin handles video and audio streams.
  • DivX Web Player version


  • User Agent: Mozilla/5.0 (X11; Linux i686; rv: Gecko/20100722 Firefox/4.0.1

More Information

Tyler Downer
  • Top 25 Contributor
  • Administrator
  • Moderator
1166 solutions 6653 answers

You are actually using Firefox 4 according to your user Agent. Try to update to Firefox 15 Update Firefox to the latest version, does that help your problem any?

  • Top 10 Contributor
  • Moderator
10783 solutions 97057 answers

Not necessarily: rv: indicates a Firefox 3.6.8 version

  • Mozilla/5.0 (X11; Linux i686; rv: Gecko/20100722 Firefox/4.0.1

You can check for a possibly corrupted user agent.