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Once, I tried adding a button with 'bookmark-item pagerank' as class to PersonalToolbar. No… Read more I Try To Add A New Button To Firefox, But It's The Old Button That Gets Added!

I already created an extension that does the following: When I run Thinderbird with the command lin… Read more Thunderbid Extension: Open Eml File

I am writing a XUL application following the default structure for standalone XUL apps - that is, I… Read more Xulrunner Ignores Updates On Edited Files

I am using the popup notification system described in the tutorial https://developer.mozilla.org/en… Read more Can I Set The Background Color In A Firefox Extension's Popup Notification?

I have a toolbar extension that generates dynamic toolbarbutton and menuitem elements. These items … Read more How To Properly Set Events For Dynamic Xul Elements?

Recently a friend of mine and I have been working on a Firefox extension. He handed the code to me … Read more What Does Paragraph About Figuring Out Xul Elements Mean In Mdn Document: "how To Convert An Overlay Extension To Restartless"