Mozilla

We’re in the last weeks of development before releasing Fennec 1.0 to the world. There has been a lot of great testing and feedback. I think we have a well defined set of things to work on for 1.0 and a good idea of what we want to look at for 1.0+.

If you’ve developed applications or extensions using the Mozilla platform, you know that there are tons of services and APIs available. We use those same capabilities when building Fennec. However, there are times when the default platform behavior is not desirable on mobile devices. When that happens, we could hack up our own system, or we could re-implement the platform APIs to suit our needs. We try to do the latter.

Designing a portable application to run on many different mobile devices is a challenge. Screen sizes and pixel densities are different making it difficult to create the One Great Layout. In addition, mobile devices can change screen orientation, from portrait to landscape and back again.

The add-on (extension) mechanism built into the Mozilla platform is very powerful. One of the optional features is support for options (preferences) dialogs. As discussed in my last post, Fennec doesn’t like dialogs. In addition, Fennec has a simple, clean preference system. While designing the Fennec Add-ons Manager, we discussed how we would support add-on options. We didn’t want popup dialogs of random and complicated XUL.

So much to do, so little time. My workspace is littered with projects I started but couldn’t find the time to keep going. It’s kinda sad and I do feel guilty.

Recently, we released Fennec Beta 3 for Maemo (Alpha 3 for Windows Mobile is very close). The new release has several internal changes that might be of interest to add-on developers - or people curious as to how the darn thing works.

Trying to debug problems in Fennec while running on a mobile device can be a pain. Using the JavaScript Error Console is one way you can track down problems, especially JS coding errors. Some applications, like Firefox, have a UI to launch the Error Console. Other applications don’t. You might not know this, but any Mozilla-based application automatically supports displaying and using the Error Console. Simply launch the application using the -jsconsole command line flag, and the Error Console will open.