see discussion here: http://forums.mozillazine.org/viewtopic.php?p=2905540#2905540

FWIW, seems to work okay when moving an item down when within bookmark toolbar chevron's pulldown...but off-by-1 when done within organize bookmarks.

maybe a dupe of bug 381751

dietrich, thanks for logging this bug from the forums discussion. yes, probably related to bug #381751 I did a little debugging and I think we are not calling moveItem() with the appropriate index, and I think that the tree view is not generating the proper insertionPoint when calling onDrop(). I plan to fix this one for A6, but let's keep from duping it until full investigated.

Removing the call to "this._adjustInsertionPoint(ip);" (_adjustInsertionPoint: http://mxr.mozilla.org/seamonkey/source/browser/components/places/content/tree.xml#845 , only call within onDrop() at #921) fixes the drag/drop difficulties. From CVS Blame, http://bonsai.mozilla.org/cvsblame.cgi?file=/mozilla/browser/components/places/content/tree.xml&rev=1.72#921 adjustInsertionPoint looks like first- or second-round code that may have been compensated for in a later patch for another drag&drop bug, like Bug #330263 or #326598. Mostly also fixes Bug #381751, but if your mouse moves two pixels in the wrong direction while trying to see if issue #3 ( https://bugzilla.mozilla.org/show_bug.cgi?id=381751#c0 ) is fixed, the error is reproduced.

Comment on attachment 268304 [details] [diff] [review] patch r=sspitzer

fixed. Checking in tree.xml; /cvsroot/mozilla/browser/components/places/content/tree.xml,v <-- tree.xml new revision: 1.77; previous revision: 1.76 done

Verified in Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.9a7pre) Gecko/200707120404 Minefield/3.0a7pre.

Bug 451915 - move Firefox/Places bugs to Firefox/Bookmarks and History. Remove all bugspam from this move by filtering for the string "places-to-b-and-h". In Thunderbird 3.0b, you do that as follows: Tools | Message Filters Make sure the correct account is selected. Click "New" Conditions: Body contains places-to-b-and-h Change the action to "Delete Message". Select "Manually Run" from the dropdown at the top. Click OK. Select the filter in the list, make sure "Inbox" is selected at the bottom, and click "Run Now". This should delete all the bugspam. You can then delete the filter. Gerv