Simon Willison’s Weblog

Entries tagged firefox

Filters: Type: entry × firefox ×

What data structures are used to implement the DOM tree?

You may enjoy this post from Hixie back in 2002 which illustrates how different browsers deal with incorrectly nested HTML. IE6 used to create a tree that wasn’t actually a tree!

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Graphing requests with Tamper Data

I spent the weekend in Boston, speaking at GBC/ACM’s Deep Ajax seminar with Alex Russell and Adrian Holovaty. I’ll be posting some notes on this later, but I wanted to share a really neat Firefox extension that Alex showed me: Tamper Data.

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Canvas demos

Jesse Andrews (of Book Burro and fame) has built some awesome canvas demos for users of Safari or Firefox 1.5. He has a bar chart and some animated rectangles, but the real gem is the live chart which polls a server using XMLHttpRequest and updates a line graph with live data. He also has some fun mathematical experiments: a cellular automata generator and a neat exploration of Lindenmayer systems (both static and interactive). Read more on his blog.

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Firefox 1.5 developer highlights

Firefox 1.5 Beta 1 is out, and is the most exciting browser release in a very long time. It comes with the Gecko 1.8 rendering engine, which includes a ton of interesting new features. New in this version (unless you’ve been tinkering with the Deer Park series):

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Dissecting the Google Firefox Toolbar

Google have finally released a Firefox version of the Google Toolbar, with some nice praise for XUL in to the bargain. Of course, the most interesting part of the toolbar from a geeky point of view is the bit that queries Google’s servers for PageRank. Sure enough, if you download the google-toolbar.xpi file, unzip it, then unzip the google-toolbar.jar file within there’s a file called pagerank.js with all of the juicy details.

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A Firefox observation

There are (to my knowledge) around 80 people on my undergraduate computer science course. Of those 80, I know of at least fourfive who’s final year project involves writing a Firefox extension of some sort. That’s 1 in 2016.

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