User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008051206 Firefox/3.0 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008051206 Firefox/3.0 When I try installing certain add-ons such as Session Manager and Prism for Firefox, I get an error that says "Firefox could not install the file at [url] because: Unexpected installation error Review the Error Console log for more details. -203" If I try again, Firefox says that the extension is incompatible with my version of Firefox, and a force install returns the same error again. Looking at the Error Console, it says: Error: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsISafeOutputStream.finish]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: file:///C:/Program%20Files/Mozilla%20Firefox%203%20Beta%202/components/nsExtensionManager.js :: closeSafeFileOutputStream :: line 508" data: no] Source File: file:///C:/Program%20Files/Mozilla%20Firefox%203%20Beta%202/components/nsExtensionManager.js Line: 508 There are also similar errors. Reproducible: Sometimes Steps to Reproduce: 1. Attempt to install an extension such as Session Manager or Prism for Firefox. Actual Results: I get an error. Expected Results: The add-on should be installed succesfully. Add-ons that have been successfully installed: Adblock Plus 0.7.5.4 Java Console 6.0.05 Nightly Tester Tools 2.0.2 Web Developer 1.1.6 Build ID: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008051206 Firefox/3.0 ID:2008051206
Version: unspecified → 3.0 Branch
An additional error found in my console is this, I'm not sure it is related: Error: [Exception... "Component returned failure code: 0x80004003 (NS_ERROR_INVALID_POINTER) [nsIDOMHTMLTableSectionElement.appendChild]" nsresult: "0x80004003 (NS_ERROR_INVALID_POINTER)" location: "JS frame :: https://bugzilla.mozilla.org/js/sorttable.js :: anonymous :: line 50" data: no] Source File: https://bugzilla.mozilla.org/js/sorttable.js Line: 50
Dave: is this a dupe?
Liam, do you have any anti-virus or malware scanning software on your machine?
Component: Extension Compatibility → Extension/Theme Manager
QA Contact: extension.compatibility → extension.manager
Dave, clearing blocking flag until we can get a confirmation, please renom if this is a serious non-dupe issue.
(In reply to comment #3) > Liam, do you have any anti-virus or malware scanning software on your machine? > Yes, I'm running WinPatrol, Mamutu, ThreatFire, Avira Antivir, SpywareGuard, and Windows Defender.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 10 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 430579
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