Sorry not much advice to provide at present, other than to keep your eye on the articles * [[latest firefox issues]] *(and although not directly related useful information may appear in <br/>[/forums/contributors/708122] ) The normal advice would include to upgrade from Firefox 9 to Firefox 10, but at the moment Firefox 10 itself is having problems. <u>Your crash</u> * Report Crash ID [[https://crash-stats.mozilla.com/report/index/02cca6f5-005e-47fe-901f-99a202120207 02cca6f5-005e-47fe-901f-99a202120207]] ** Signature: nsRefPtr<nsPresContext>::~nsRefPtr<nsPresContext>() | nsThread::Dispatch(nsIRunnable*, unsigned int) ** related bug 716386 <u>Background Info</u><br/>Firefox seems to be having problems with startup crashes. Some in Firefox 10 were initially thought to be due to malware, but now the developers are unsure. Your crash appears to be a relatively new one, and only affecting Windows and Firefox 9 (or beta versions of Firefox10). This sort of problem will be investigated as a priority, as I see it caused over 12000 crashes over the last week. One way of getting a working Firefox browser is to install Firefox poratble 3.6 as an additional browser. Firefox 3.6 is still supported and secure, and is probably unlikely to suffer problems with crashes. * http://portableapps.com/news/2012-02-01_-_firefox_portable_3.6.26_released Note, if you do report crashes by submitting crash reports your data is useful to the developers working on problems, and in some instances there is a possibility you may be emailed by them, it would help if you reply to any such emails, if you have doubts about them being genuine ask on the forum. <u>General advice</u> General info on crashes is article : [[firefox crashes]] and if it is not actually a crash look at [[firefox hangs]] Note one recent crash was [/questions/917558#answer-307834 solved] by updating Java, and the general advice included in the above article includes updating firefox extensions and plugins.