Read Later: a Mobile Firefox extension
Hello, Planet Mozilla! I'm Matt Brubeck, the newest member of the Mobile Firefox (Fennec) front-end team. I'm working remotely in Seattle, but you can find me in #mobile during the North American day, or follow me on Buzz/Twitter/etc.
To help myself learn Fennec and XUL, I wrote a simple extension called Read Later. Like Marco Arment's Instapaper service it stores a list of web pages so you can return to them later. Unlike Instapaper, my extension does not save pages to a remote server. Instead, it uses your mobile device's storage, so you can view saved pages offline. I use code from Arc90's Readability bookmarklet to extract the main content from the page, save it, and present it in a simple mobile-friendly layout.
One thing the extension can't do (which Instapaper and other services can) is synchronize saved pages between computers. This would be a great feature for a Mobile Firefox add-on, but writing my own sync service is a bit more work than I want to put into this little side project. A future version may use Weave to sync saved pages, as long as the size of the data is not a problem.