Dave Townsend

I'm a senior Firefox developer who has spent most of his working life helping to make Firefox extensible. I currently manage the SDK team of the developer tools group.

Add-on Debugger now in Firefox Nightly

Dave Townsend

April 8, 2014

Since the dawn of Firefox debugging add-ons has been a task fraught with peril. The old JavaScript Debugger existed but hasn’t received the care and attention it needed. Most of … Read more

Changes to how Extensions are Installed in Firefox 4

Dave Townsend

September 23, 2010

The next beta of Firefox 4 will include a change to how Firefox installs and uses extensions. Previously the files from the extension’s XPI would be extracted into their own … Read more

Multiple breaking changes are coming for components in extensions

Dave Townsend

June 14, 2010

Are you an extension or application developer? Have you written any XPCOM components, JS, binary or otherwise? If not you can probably ignore the rest of this post, unless you … Read more

Broken executables in extensions in Firefox 3.6

Dave Townsend

January 22, 2010

Reposted from my blog in order to spread the word: If you are an extension developer and include executable files in your XPI package (binary or shell scripts) then you … Read more