Mozilla cracks down on slow starting Firefox add-ons Firefox's expandability through add-ons is often cited as a key feature of the browser, but it is also known to be a source of sluggish performance and slow startup times, particularly when running several add-ons simultaneously. Things have notably improved with the release of Firefox 4, but there's still work to be done, and as such Mozilla is starting an initiative to get add-on makers to optimize their programs. According to Mozilla's Justin Scott, Product Manager for Add-Ons, the average Firefox extension increases startup time by about 10%. The actual impact in seconds will depend on the hardware and software a user is running, but the company estimates that installing 10 add-ons will double the amount of time it takes the browser to launch. To that end the company will begin running automated performance tests on the top 100 add-ons and post the results here on a weekly basis.
Ten Essential Linux Admin Tools Every good Linux System Administrator has a set of tools they reach for again-and-again. Here are ten must haves for your virtual utility belt. System Administrators (SAs) need a set of tools with which to manage their often unmanageable systems and environments*. These ten essential Linux administration tools provide excellent support for the weary SA. Those listed aren’t your standard list of tools deemed essential by industry bystanders. These are tools that have proven track records and have stood the test of time in the data center. Webmin – Webmin is the ultimate web-based management platform for Linux and several other operating systems. * It’s unfortunate that no set of tools exist to manage the unmanageable users in our midst. Kenneth Hess is a Linux evangelist and freelance technical writer on a variety of open source topics including Linux, SQL, databases, and web services.
developer console bookmarklet By Opera Software Note: this bookmarklet is no longer supported, and only here for historical reference. Instead, we recommend you try out our powerful Opera Dragonfly – Opera's built-in web developer tools. There is also an extensive Opera Dragonfly documentation for your reference. This bookmarklet has been used by Web Application developers at Opera Software for some time. All of the tools should work in Opera 9.0 and later. Installing developer console Drag the developer console button directly to any Opera toolbar. Opera Developer Console Opera now includes a developer console that can be added into the browser with many new features. To install this tool, drag it into any Opera toolbar: To learn more, look through the documentation below. DOM Snapshot The DOM Snapshot tool allows you to inspect the source of a page, as parsed by the browser. Using the Opera Developer Console Opening the Developer Console Console basics DOM Inspection The node tree Selecting nodes in the node tree Removing nodes
Why IE9 is a Web Designer’s Nightmare Web professionals have been getting pretty excited lately, and it’s no surprise why. The latest spawn of Microsoft’s browser, Internet Explorer 9, has just been released. Many people have been talking about the changes and whether the latest version is a solid step forward, or if it’s too little, too late. In a previous article, Jacob Gube (this site’s founder) had a more positive view of IE9. My Rocky Relationship with IE9 After waking up one morning and checking out my Twitter feed, I spotted a tweet that got me pretty excited: The first release candidate for IE9 had launched! Now, among web designers, I am probably one of the most skeptical of IE — we’ll skip the IE6 jokes for now — but this time around, I had a great beta experience and saw so much good work. I quickly downloaded it and began the installation process. So far, things were turning out better than I’d hoped. If my webcam had been turned on, this is the expression you would have seen. Internet Explorer Is Improving
Mondo Rescue - GPL disaster recovery solution Desktop Team - Desktop Team We’re bringing your gaming style to your phone Great news gamers! Today, we’re releasing the beta version of Opera GX Mobile – the world’s first mobile browser designed specifically for you. The concept has been one of the most frequent requests we’ve got from you since releasing Opera GX – our successful desktop browser used... » Read more Opera is the only browser to natively support Unstoppable Domains and Web3 on Windows, Mac and Linux, as well as Android and iOS Hi there, We have some great news for all the crypto enthusiasts out there! Today, Opera announced full integration with the blockchain domain name provider Unstoppable Domains, providing you with seamless access... » Read more Hello there, this is the weekly Developer update. » Read more Hello one and all! » Read more Hello once again, For a good start to a new week, we’ve got a fresh Opera 78 developer update for you. » Read more Hello, Hope everyone is doing well! » Read more Hello, This is Opera 76 Stable update. » Read more
Greasemonkey Deep Freeze (software) To make changes, a system administrator must 'thaw' the protected partition by disabling Deep Freeze, make any needed changes, and then 'freeze' it again by re-enabling Deep Freeze. These changes become part of the protected partition and will be maintained after restarts. 'Freezing' and 'thawing' can be done at the workstation level or remotely via either the Faronics Core management platform or the Deep Freeze Enterprise Console. Users of the Enterprise version can also create virtual partitions called ThawSpaces (of up to 1 TB on an NTFS-formatted drive) to retain data on "frozen" hard drives after restarts. Deep Freeze can also protect a computer from harmful malware, since it automatically deletes (or rather, no longer "sees") downloaded files when the computer is restarted. Deep Freeze only protects workstations in a "fresh-booted" state. Deep Freeze can protect hard drive partitions of larger than 2 TB capacity (using NTFS). Official website
Extensions - Add-ons With Opera switching from Presto to Chromium and a complete UI remake, our extensions infrastructure has also gotten a major overhaul: from Opera 15 onward, Opera 11 & 12’s extension format is no longer supported, and instead, we’ve switched to Chromium’s extension model. Check out our new documentation for developing extensions for Opera 15 and higher and start building your own extensions. Getting started API reference You can build Opera extensions using the Opera Extensions APIs and open web standards like JavaScript and HTML. Basics and UI elements: Browser functions: Injected scripts (add JavaScript to websites) URL filtering (e.g. for ad blocking) Messaging (e.g. between the background process and the injected script) Speed Dial (for Speed Dial extensions) Resource Loader (access any file within an extension package) Screenshot (take screenshots of pages) Context Menu (add items to the context menu) Finishing up: Extension tutorials Templates and code samples
FireShot System Profiler - SEE The Whole Picture