firefox and thunderbird updates

Major updates have been provided for the firefox web browser and the thunderbird mail client on ScientificLinux 6 which will take us up to version 10 (Extended Support Release). These updates provide a large number of fixes for serious security holes as well as many feature enhancements. We have tested these updates and do not expect any major issues. There will be some differences in how the interfaces behave so please expect some big changes but if you find anything which is causing a problem please let us know. The upgrades will be installed onto DICE SL6 desktop machines during the night of Wednesday 28th or the early morning of Thursday 29th March. If you use firefox or thunderbird you will need to restart the application after the upgrade has completed.