nsIRemoteContainer no longer exists (bug 382877), this page should probably be deleted.
http://developer.mozilla.org/en/docs/nsIRemoteContainer

This page refers to nsIRemoteContainer, and also talks about an supported “mode” near the bottom, if this will not be supported by Firefox 3 final, can this be clarified?
http://developer.mozilla.org/en/docs/Places:Custom_Containers

This section should likely point to the new documentation:
http://developer.mozilla.org/en/docs/nsINavBookmarksService#createDynamicContainer.28.29

Thanks!

What’s much more difficult is setting up a new extension, learning the basics. When I started coding in Mozilla a few months ago I had great difficulties: The examples were outdated (often simply didn’t work in fx2), didn’t apply if you weren’t using them in the default way. Say, if you wanted to create a sidebar, like I did. So in order to make things work, or even appear in fx I started looking at other extensions, sometimes only learning much later what was actually going on or that half the code wasn’t even needed.

If you’re new to hacking Mozilla try to create and manipulate a Custom Tree View, it’ll make you pull you hair out.

XPCOM still is a magic box to me: you use but you don’t really know what’s going on.
Stuff like: var prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefService).getBranch(”extensions.”+extension_name+”.”);
is really scary if you’ve never used it before. (The above example, btw, is the successful end result of quite some trials and errors, there was no complete example like this…)

Actually this wasn’t my first try. All earlier attempts at creating a sidebar extension were just too frustrating to continue. That was before there was a Wiki on DevMo.

I realize this is slightly off-topic. But hopefully some good comes from it.

All you developers who have had trouble achieving what you wanted try to integrate the information you were hoping to find on DevMo. Give something back to Mozilla! I spent quite some time updating the Storage (mozStorage) pages there. Anyway, thanks Sheppy for the great work!