Due to Opera’s speed and strict adherence to web standards, it makes for a great web design/development browser.

With the addition of these widgets your design/development tasks will become that much easier.

	1. Screen Ruler Screen Ruler is exactly what you’d think it is – a tool that allows you to measure the space on your screen – specifically in Opera. Just click the grid in two places to measure the distance between the points (in pixels). To remove the points, click again. You can create straight lines by using the Shift key.
	2. Colours of the Rainbow Colours of the Rainbow allows you to quickly select a colour and view its HSV, RGB and CSS hex codes. It can be quickly “folded up” to take up less screen real-estate when it’s not in use.
	3. CSS Help CSS Help provides you with quick access to the W3C CSS 2.1 codes, right on your desktop. The built in search makes finding tags super-quick.
	4. Site Validator Site Validator combined with a validate.xml file that contains a list of all the files (HTML/CSS) allows you to quickly confirm files and links are correct. Alternately, you can link to a standard sitemap.xml, but I’ve had issues (errors when there shouldn’t be) using that method.
	5. Javascript Cheatsheet Javascript Cheatsheet provides quick reference to JS information from the Mozilla Developer Center.
	6. Character Map Character Map allows you to quickly find and select various typographic characters. Once found, just click the character and it’s placed into the text field where it can be easily copied.
	7. HTML Entities HTML Entities is a floating sheet that displays all HTML Entities (Latin-1, Greek, Math and other) with descriptions that can be toggled on or off.
	8. Charge by the Hr Charge by the Hr allows you to keep track of the time you’ve spent working on a project. It also allows you to put in an hourly rate, so you can see how much you’ve made as time passes (a bit of motivation).

So what do you think of these widgets? Have you used them yourself? Would you use them? Do you have any favourites of your own you’d like to add? Let us know in the comments.

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To get started, just download the addon for your browser. If you’re using Firefox or IE, download and install this search addon. Once it’s installed, just select YopMail.com from your search drop-down list. Enter in a random string of characters, and that will become your @yopmail.com email address. Hit enter, and you’ll be taken to the mailbox for that address. Couldn’t be easier!

Opera users can download this widget. Once it’s installed, open the widget and click the “lightning” button to generate a random address. Then click the Mailbox button and Opera will open a new tab and display your newly created mailbox.

Creating random temporary email addresses is perfect for those web signup forms if you don’t want to get hit by spam mail. If you value your privacy online, these browser addons are perfect for creating one-off “use them then toss them” email addresses.

You might also want to check out 5 “DISPOSABLE” Web Accounts to Keep Your Identity Safe by Aibek and Get a Grip on eMail Spam Before It Gets A Grip On You by Tina.

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So here are my top 5 free FPS games that work on multiple operating systems. From the top…

OpenArena

OpenArena is “an open-source content package for Quake III Arena licensed under the GPL, effectively creating a free stand-alone game”. What does that mean to you? It’s free, and you don’t need Quake III Arena to play it. OpenArena supports a slew of different game types, including: Deathmatch, Tournament, Single Player Deathmatch, Team Deathmatch, Capture The Flag, Elimination, CTF Elimination, Last Man Standing and Double Domination. The hardware requirements are pretty minimal – with a PII 233MHz processor and at least 96MB of RAM being the suggested minimum system requirements.

Supported Platforms: Linux, OS X and Windows 9x/2000/XP/Vista

Nexuiz

Though Nexuiz has slightly higher hardware requirements than most of the games in this list, once you start playing you’ll know why. The graphics really are better. From their information page:

“Nexuiz is a 3d deathmatch game that has been in development since the summer of 2002. The goal of the project is to create a high quality first person shooter that can be played freely across all platforms in one package: PC, Mac, and can be even included in Linux distributions. The game is entirely open source, with the sources of the engine, gamecode, map files, and compiling tools, all included with the download, all under the GPL license.

The gameplay is deathmatch with the most excessive possible speeds and weapons, giving incredibly intense fast paced action. Along with deathmatch, there are multiple gamemodes such as team deathmatch, capture the flag, domination, and many mutators and weapon options like rocket arena and instagib. The user can fight through the single player campaign, going through over 20 levels, or play online with our server browser.”

Nexuiz has a very active and helpful community, and has recently started tournaments in Europe and North America.

Supported Platforms: Linux, OS X and Windows

Urban Terror

Urban Terror describes itself as a “Hollywood tactical shooter” with an emphasis on “fun over realism”. I’d agree with them on the descriptions. It uses the same engine as OpenArena (ioquake3), but has more of a “counter-strike” feel than OpenArena. Urban Terror comes with a thoroughly detailed manual that explains every aspect of the game. Check out the video below for an idea of gameplay.

Supported Platforms: Linux, OS X and Windows

Cube 2: Sauerbraten

Sauerbraten is a single and multiplayer FPS freeware “game project”. Though the aim of Sauerbraten is “to allow map/geometry editing to be done dynamically in-game” – don’t let that fool you – it’s a heck of a lot of fun. There are monthly championship games on the first Sunday of the month (where I regularly get schooled) and a Cube Server Lister app that makes finding games (and your friends) a snap.

Supported Platforms: Linux, OS X and Windows

Alien Arena

Sci-Fi lovers will enjoy this one. From its initial release in October of 2004, Alien Arena has come a long, long way. Over a million downloads, and dozens (hundreds?) of community created maps, models, and various accessories add to the game experience. It also features a very fun “Team Core Assault” mode, in which players must work together to disable their enemy teams central metal spider. Though OS X isn’t officially supported, yet, you can download the Linux version and then apply this patch to get it working (runs perfectly on my MacBook Pro).

Supported Platforms: Linux and Windows (OS X support is unofficial, see above)

You might also want to check out Top 5 Free Online Shooter Games by Simon.

So what about you? What are YOUR favourite free ‘first person shooter’ games? Do you agree with my choices? Let it rip in the comments!

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