User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15 (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15 (.NET CLR 3.5.30729) When attempting to search my bookmarks through the sidebar or when using Organize bookmarks Firefox hangs. Currently using version 3.6.15. The only way to resolve this is to roll back to 3.6.9. This bug was reportedly fixed but it STILL EXISTS. This is happening on multiple computers with XP or Vista. I keep the computers current with Microsoft patches. Reproducible: Always Steps to Reproduce: 1. Any method used to search bookmarks 2. 3. Expected Results: The search function in 3.6.9 is hands down 100% better in 3.6.9 and earlier versions.

Could be an incompatible addon. Could you see if the issue occurs if using Firefox in safe mode: http://support.mozilla.com/kb/Safe+Mode How about with a new, empty testing profile? (Don't install any addons into it yet) http://support.mozilla.com/kb/Basic+Troubleshooting#w_make-a-new-profile

fwiw, next SQLite update (planned for 3.6.16) should fix this.