Firefox 3 Beta1 and extensions

I have just installed and tested Firefox 3 Beta1. Everything seems to work ok. However, I have only used it for about 30 minutes yet.

Here are some experiences regarding extensions:

1. Adblock Plus: Works out of the box. Great!
2. Greasemonkey: Not working. See below.
3. Mostly Crystal (Theme): You can find a version for Firefox 3 Beta 1 here.
   
4. Dictionaries (Polish, German and probably many more): Not working. See below.
5. Google Toolbar: Not working. Method below doesn't help. However, i don't really need it since Firefox's own search bar is good enough.

Here is what you can do to use extensions not ready for Firefox 3:

1. Download and unpack the xpi-file (actually it is a zip-file).
2. Open install.rdf.
3. Chance in the following line '2' to '3':
   

   <em:maxversion>2.00</em:maxversion>

4. Repack everything.

For me this works well with Greasemonkey and the German and Polish dictionary file. But don't expect it do work with every extension. This might also unstabilize your Firefox.

UPDATE 21.11.2007
Since smooth scrolling still doesn't seem to work out of the box I tried to install SmoothWheel. This extension is already ready for Firefox 3 but is still not installable by default. The reason seems to be that Firefox 3 only accepts updates from secured web pages (https://...). To solve this problem another hack to install.rdf is necessary (as described below). Simply remove the URL in the following line:

<updateURL>http://smoothwheel.mozdev.org/update.rdf</em:updateURL>

That's all.