User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.9) Gecko/20100317 SeaMonkey/2.0.4 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.9) Gecko/20100317 SeaMonkey/2.0.4 Bookmark title (name) is not parsed correctly if it contains the string "</a>" in its URL. And since it's not parsed correctly after the browser is restarted, it's not displayed in Bookmarks Manager GUI and not saved in the bookmarks.html file. Reproducible: Always Steps to Reproduce: 1. Create a bookmark with the "</a>" string in the "Location" field (URL), e.g. "javascript:'</a>';" without quotes. 2. Restart SeaMonkey (so that bookmarks.html file gets saved on browser exit and reparsed when browser starts). 3. Open Bookmarks Manager and see that bookmark has no title (neither in the Bookmarks Manager's tree, nor in the "Name" field in the "Bookmark Properties" dialog). 4. Close SeaMonkey. 5. Open bookmarks.html in a text editor and see that the bookmark has no title there - it's saved as <a href="javascript:'</a>';" ...></a>, i.e. the <a> tag has no child text node with bookmark's title. Actual Results: Bookmark's URL is saved in the improper form (as is, not escaped): "javascript:'</a>';". Expected Results: Bookmark's URL is saved in a properly escaped form: "javascript:'%3C/a%3E';". This bug has the same nature as the infamous "</script>" issue of HTML parsers, the same workaround (you have to split the "</a>" string in two parts, e.g. "<" and "/a>"), and I think its root cause is improperly escaped bookmark's URL. Bookmarks Manager (or whatever thing is responsible for that) already escapes double quotes (it replaces them with %22), so why not to escape other symbols?

See bug 362552 for the corresponding Firefox bug. This will most likely be fixed by bug 498596.

This has been fixed by bug 498596.