I checked with "never-defined property of existent wrapped object".
Requested following by test extesion where CurrentServer is [xpconnect wrapped nsIMsgIncomingServer], CurrentServer.ABCDEFGHIJKLMN=true; and following exceptin was caught by try/catch(e). > Try to change never-existent property of wrapped object for bug 831664 > Exception by CurrentServer.ABCDEFGHIJKLMN=true > [Exception... "Cannot modify properties of a WrappedNative" nsresult: > "0x80570034 (NS_ERROR_XPC_CANT_MODIFY_PROP_ON_WN)" It looks for me simply a "misleading condition name". If NS_ERROR_XPC_CANT_*CREATE*_PROP_ON_WN, no problem... If such condition name, it's apparent that fault is in JS code who requestd property value change even though the property is undefined(i.e. non-existent), if "creation of property via wrapped object" is not supported. And, "why undefined is returned even though property should exist" is different problem from this bug, as seen in bug 831664. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/605513 Title: Get uncaught exception when populating a form in FireFox 3.6 Status in The Mozilla Firefox Browser: Confirmed Status in “firefox” package in Ubuntu: Triaged Bug description: Binary package hint: firefox When populating an input field on a form in Firefox (Linux or Windows) where I select or just pass the mouse over one of the historical suggestions that drops down while inputting, I receive the following error: Error: uncaught exception: [Exception... "Cannot modify properties of a WrappedNative" nsresult: "0x80570034 (NS_ERROR_XPC_CANT_MODIFY_PROP_ON_WN)" location: "JS frame :: chrome://global/content/bindings/autocomplete.xml :: onxblpopuphiding :: line 825" data: no] I do not receive the error in Google Chrome ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: firefox 3.6.6+nobinonly-0ubuntu0.10.04.1 ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5 Uname: Linux 2.6.32-23-generic i686 Architecture: i386 Date: Wed Jul 14 10:02:01 2010 FirefoxPackages: firefox 3.6.6+nobinonly-0ubuntu0.10.04.1 firefox-gnome-support 3.6.6+nobinonly-0ubuntu0.10.04.1 firefox-branding 3.6.6+nobinonly-0ubuntu0.10.04.1 abroswer N/A abrowser-branding N/A InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) ProcEnviron: LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: firefox To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/605513/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp