Comment 3 for bug 725316

Update:

I went to every extension enabled/disabled and it seems to be related with the Wikipedia extension, which is in the default set and enabled by default.

However, enabling/disabling extension only has an impact, when before quitting banhee completely and restarting. In the following two cases with the extension, hope that makes it clearer:

Case1: DOESN'T CRASH
>Edit >Preferences
>Extensions
(Context Pane extensions)
Wikipedia DISABLED
YouTube ON
(Core extensions)
Audio CD Support ON
Audiobooks Library ON
File System Preview Queue ON
Internet Radio ON
Play Queue ON
Podcasts ON
(Device Support Extensions)
Apple device support ON
Mass Storage Media Player Support ON
MTP Media Player Support ON
(Online Sources extensions)
Amazon MP3 Import ON
Amazon MP3 Store Source ON
eMusic Import ON
Internet Archive ON
Last.fm Radio ON
Last.fm Scrobbling ON
Miro Guide Podcast Directory ON
(Utilities extensions)
BPM detection ON
Cover Art Fetching ON
DAAP Sharing ON
Importers for Amarok, Rhythmbox and iTunes ON
Library Watcher ON
Metadate Fixup ON
Mini Mode ON
MPRIS D-Bus Interface ON
Multimedia Keys ON
Notification Area Icon ON
Sound Menu Integration for Banshee (not installed or disabled because Notification Area is ON)

In >Preferences > General:
ReplayGain correction ON
Gapless Playback ON
Internet access NOT disabled / ON
Send anonymous user data DISABLED
Everything else default settings.

So all these make no problem for me. However, if I active the WIKIPEDIA Extension in running the program and playing music switching the view, it works.

But then restarting with the Wikipedia extension activated, Banshee crashes immediately when clicking on "Now Playing" again. Disabling Wikipedia and restarting again: Banshee works fine in "Now Playing" mode.

I guess this wikipedia extension is in the default set of banshee-package and enabled by default. That seem to be the problem for me. However, this can also be related to dependencies or libwebkit... ?