hi all, I have 2 fresh-installed suse 9.1 (i386) systems with all the updates applied. Both of them have MozillaFirefox-1.0-4.3 on them, and on both of them I cannot install any firefox extension. When I choose Tools->Extensions, the Extensions windows will come out, which redirect to the official mozilla/firefox website. When I choose an extension and select "Install Now", the "Software Installation" windows will come out. However, if I press "Install Now" button, nothing happens, and my "extensions" window remain blank. At the same time, the JavaScript console shows the following error: Error: [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIRDFService.GetResource]" nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)" location: "JS frame :: file:///opt/MozillaFirefox/lib/components/nsExtensionManager.js :: nsExtensionsDataSource_addDownload :: line 4040" data: no] Source File: file:///opt/MozillaFirefox/lib/components/nsExtensionManager.js Line: 4040 Error: [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIRDFService.GetResource]" nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)" location: "JS frame :: file:///opt/MozillaFirefox/lib/components/nsExtensionManager.js :: nsExtensionsDataSource_addDownload :: line 4040" data: no] Source File: file:///opt/MozillaFirefox/lib/components/nsExtensionManager.js Line: 4040 (yes, the error appears twice for every extension I tried to install). I have googled this problem but none of the web page turned anything helpful. I don't think this is about the versioning problem, but perhaps some permission problem? I tried to install/re-install firefox, with ~/.mozilla removed each time. I also tried to run firefox as root when it is first installed (and fix to an old but for firefox-pr) but that did not help either. Any help is very much appreciated; I have struggled with this problem for a few weeks now, tia,