Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b7pre) Gecko/20100918 Firefox/4.0b7pre ID:20100918041706 Firefox keep 100% CPU and would not kill own process when I execute File > Exit The attached sample places.sqlite contains a folder which includes 21 bookmarks(twitter) in Bookmarks Toolbar. Reproducible: Always Steps to Reproduce: 1. Prepare Fresh profile and Import Sample places.sqlite 2. Start Minefield with above profile 3. Open a Folder (Middle Click a "twitter" in Bookmarks Toolbar) 4. Wait complete loading of page 5. File > Exit 6. Repeat step2-5 more than 2 times Actual Results: Firefox keep 100% CPU and would not kill Firefox process Expected Results: Should kill firefox process immediately Regression window: Works: http://hg.mozilla.org/mozilla-central/rev/c402a67ba0db Mozilla/5.0 (Windows; Windows NT 6.1; WOW64; rv:2.0b3pre) Gecko/20100729 Minefield/4.0b3pre ID:20100729142730 Fails: http://hg.mozilla.org/mozilla-central/rev/6d0d4c0c8890 Mozilla/5.0 (Windows; Windows NT 6.1; WOW64; rv:2.0b3pre) Gecko/20100729 Minefield/4.0b3pre ID:20100729143014 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=c402a67ba0db&tochange=6d0d4c0c8890 Bug 572223 - too much cookies.sqlite io

dwitte, looks like you?

This is going to be fixed by bug 595925.

This was fixed on Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101020 Firefox/4.0b8pre ID:20101020042802.

Clearing blocking request.