A PCRE internal error occured. This might be caused by a faulty plugin

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A PCRE internal error occured. This might be caused by a faulty plugin

====== Upgrade Installed Applications ====== Some applications that come pre-installed with Linux Mint LMDE, sometime need to be upgraded. The upgrade process can sometimes be absolutely easy and stright forward, but sometimes it gets a little bit more complicated. Here is a list of some cases I encountered. ===== Firefox & Thunderbird ===== Both FireFox and Thunderbird have an integrated system to check for updates and, wether automaticaly or after prompting the user, the process runs by itself. Although everything seems to run smoothly regarding Firefox, Thunderbird's upgrade panel gets stuck on the "Connecting to the update server..." message: {{ :applications:upgrades:thunderbird-softwareupdate.png?direct&200 |}} <WRAP todo>TO BE COMPLETED</WRAP>