I can't be sure, but it seems to happen only when I am using Firefox or Thunderbird. (It did not crash for a few hours last night, while I was only using Pidgin, VLC and Rhythmbox; it crashes every ten minutes now that I am trying to read my e-mails and check my RSS feeds.)
Last time, it happened when I clicked the "Sync now" menu item in Firefox.
Here are pictures of two different crashes.
I can't be sure, but it seems to happen only when I am using Firefox or Thunderbird. (It did not crash for a few hours last night, while I was only using Pidgin, VLC and Rhythmbox; it crashes every ten minutes now that I am trying to read my e-mails and check my RSS feeds.)
Last time, it happened when I clicked the "Sync now" menu item in Firefox.