User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.6b) Gecko/20031211 Firebird/0.7+ Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.6b) Gecko/20031211 Firebird/0.7+ Clicking a mailto: link in a web browser will crash Thunderbird if it is already running and is specified as the default mail program. This happens with both Firebird and Safari. I'm using Mozilla Thunderbird 0.5a (20031213). Reproducible: Always Steps to Reproduce: 1. Use the Apple Mail Preferences window to set the default mail reader to Thunderbird. 2. Open a page with a mailto: link. I used the page listed above. 3.Click the mailto link. Actual Results: Thunderbird crashes. Expected Results: Thunderbird should open and present the mail compose window. I'm using Panther (10.3.1) on a G5.

Stack trace from the Apple crash reporter.

don do you see this too?

On my G4 this does not occur, but a friend with a G5 was able to duplicate the crash with the 12-14 build. In fact, much to my surprise, opening a mailto link into a new compose window actually works in 10.3 (Panther)!

This happens on my powerbook running 10.3.2 with Thunderbird 0.4 as well as tonights 1.12.04 release. After awhile I get the following error box: Error launching browser windows:Type Error: Components.classes['@mozilla.org/appshell/component/browser/instance;1'] has no properties. This is from clicking on a mailto link within Firebird and having thunderbird as the default mail app.

Thunderbird doesn't crash for me but I do get this error: Error launching browser windows:Type Error: Components.classes['@mozilla.org/appshell/component/browser/instance;1'] has no properties. It happens when clicking on mailtos in any browser, and is still present in .5 final.

Don, you interested in working on this bug with getting mailto links working right on OSX?

*** Bug 225494 has been marked as a duplicate of this bug. ***

See also non-crasher bug 221077.

I don't get a crash but I never get a mail compose window either.

just a "me, too" report for the dialog box that comes up, but not the crasher. it seems different than http://bugzilla.mozilla.org/show_bug.cgi?id=231032 ; apparently, mailto: is working properly for some of those folks some of the time. so perhaps there is some configuration problem that causes it to misbehave with the dialog box for us, but works in most cases without spaces in the subject lines for them.

the dialog box Error launching browser windows:Type Error: Components.classes['@mozilla.org/appshell/component/browser/instance;1'] has no properties. as reported by eric on 2004/02/12 is still appearing for me in a newly downloaded version (0.5+ 20040411) fairly convinced this might be a configuration problem, since it seems there are other bugs that indicate that many are not having this problem. i'd be glad to get into an emacs window in OS X, dired to the proper place, delete files or text-edit whatever .dat, .rdf, or whatever files are necessary. this seems like a major problem to me, and it's really starting to annoy me a lot. if someone on the mozilla project has an idea, email me offline, i can perhaps IM with you to figure out what to do ...

this has been fixed in 0.6 by the patch in 234541 which is now in the 0.6 branch. That patch still needs checked into the trunk (in some form). Marking this fixed will leave 234541 open until it lands in the trunk. Please verify with the 0.6 candidate builds: http://ftp.mozilla.org/pub/mozilla.org/thunderbird/nightly/latest-0.6/ thanks

With Thunderbird version 0.6b (20040425), this now behaves correctly on my system: a G5 running OS X 10.3.3. I tested with Firefox 0.8 and Safari 1.2.1 and tried it with Thunderbird running and not running when I clicked the link. A mail compose window appeared in all cases.

thanks for testing chuck.

I just tested and am happy to confirm that it works for me as well!