2Bangkok.com recommends Firefox

Recommended extensions for Firefox

Tab X - Adds a close button to each of the browser tabs.

Adsense Notifier - Displays your Adsense earnings on the statusbar.

PDF Download - Allows to choose what you want to do with a PDF file.

Flashblock - Replaces Flash objects with a button you can click to view them.

LinkChecker - Checks the validity of links on any webpage.

IE View - Open pages in IE via Firefox menus.

BugMeNot - Bypass compulsory web registration with the context menu via bugmenot.com.

HashColouredTabs - Gives each tab a colour-coded icon depending on the URL.

Title Save - Save web page with the page's title as name.

whois - Whois info from the context menu.

WellRounded - Provides rounded URL and search bars.

Open link in... - Adds more tab/window opening options to the context menu.

WikiPedia Lookup Extension - looks up a highlighted word in Wikipedia

File Title - "Save as" title as default like in IE.

VideoDownloader - Download videos from Youtube, Google, etc.

Internote - Persistent sticky notes for Firefox.

Torrent-Seach Toolbar

Good themes

Modern Pinball or Brushed (a minimalist look)