User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; da; rv:1.9) Gecko/2008052906 Firefox/3.0 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; da; rv:1.9) Gecko/2008052906 Firefox/3.0 I get a warning box on startup with text: "TypeError: Component.classes[CID] is undefined" After clicking ok, FF starts up. This happens after a restall. Reproducible: Always Steps to Reproduce: 1. uninstall Microsoft Visual C++ 6.0 2. startup Firefox 3. I have uninstalled Microsoft Visual C++ 6.0
Not quite clear what MSVC has to do with this. Please explain more. Regardless, I suggest giving Firefox safe mode a try: http://support.mozilla.com/en-US/kb/Safe+Mode or possibly a new profile: http://support.mozilla.com/en-US/kb/Managing+Profiles It sounds like an add-on of some sort is doing this. If it doesn't have this error in safe mode then that's probably the case. Disable the add-ons one at a time until you find the cause. (try plugins after extensions if you need to) If you find an add-on that does this, then please reply back here with its name and version.
You are quite right. I should have tried that from the start. It tourned out that it was the AVG Safe Search 8.0 that was the culpit. Thank you. :)
Status: UNCONFIRMED → RESOLVED
Last Resolved: 11 years ago
Resolution: --- → FIXED
Glad to hear you've solved the problem. FIXED is for when a bug has been fixed by a change from Mozilla. This bug is INVALID because it turned out to be an AVG problem. Please report this issue to them.
Resolution: FIXED → INVALID
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