bookmark error comes up when trying to save first time
Bookmarks give an error message when trying to save the first time. After first time, then it saves correctly. I get this message. unload: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: chrome://trustchecker/content/trustchecker.js :: anonymous :: line 955" data: no]
Alla svar (1)
That error message is from something called trustchecker or similar. You didn't bother to post your Troubleshooting Information as requested, so that's about as close to ID'ing that as I can guess.
Tools > Addons >> Extensions - look for that there and either check for an update for it or disable.