Download Firefox 4 Beta Portable

Firefox 4 Beta 1 was released yesterday. I ran the browser through some tests and did a review of Firefox 4 beta too. However, if you are a bit scared of installing the browser on your system, you might try it out as a . The good part about using it as a portable software is that it won’t change your system settings or add data to the registry and you can safely delete the browser if you are not happy with it.

Firefox 4 Beta 1 Portable

You can download Firefox 4 as a portable software and then unzip the contents to any folder to run it. To delete the browser from your system, you will just have to delete the unzipped folder. Nothing gets easier than that. Excited to try the Firefox 4 beta on your system? Check for the download links below.

Please note, Firefox 4 is still in beta, so there will be a lot of bugs. If you are not comfortable with unfinished software you are recommended to stay away from using Firefox 4 Beta.

Download Firefox 4 Beta Portable (via DSQ)

How to Install and Use Add-ons in Firefox 4 Beta 1?

Firefox 4 beta 1 has arrived and the beta 2 is also available for download unofficially from the FTP server. It has some awesome new features like tabs on top, a unified menu and many behind the scene changes. However, there is a word of caution before you jump into using it. The latest Firefox beta has add-on support disabled by default.


This move ensures that users are not facing trouble because of unsupported add-ons. However, that can be an issue at times and here is an easy workaround to install add-ons.

To install older add-ons,

  • First, you need to install an add-on named “Add-on compatibility reporter”.
  • Then, restart Firefox as prompted. This will enable the add-on.
  • Next, you need to restart Firefox once more. Finally, this allows you to install add-ons.
  • In the browser address bar type in “about:addons” to get the Add-on Manager.

Now you can install any older add-on as you could earlier.

The add-on compatibility reporter is used to report add-on compatibility. So, if you are using the Compatibility Reporter add-on to enable older add-ons, please report their compatibility. This will help Mozilla improve your user experience in return.

Firefox 4 Beta 1 Review

Firefox 4 Beta 1 was released earlier today. The newer version of Firefox from Mozilla is definitely better than Firefox 3.6 and is definitely worth trying out. Firefox 4 runs on the Gecko 2.0 web platform. Earlier today I downloaded Firefox 4 and put it through some drills, here is a review of Firefox 4 Beta 1 where you can find the new features and also the how Firefox 4 fares against other browsers in web browser benchmarks.

New User Interface

Firefox 4 New User Interface

Firefox 4 sports a completely different interface, some of which are from and . Firefox 4 has some new buttons and also a unified menu which is similar to the one Opera 10.6 has. In addition to that the tabs also default to the top which is similar to Google Chrome.

However, the menu bar is initially hidden and users can unhide it to go back to the older navigation found in Firefox 3.6 and below.

Firefox 4 Bookmarks menu

Firefox 4 also has a new bookmark button giving users easy access to their bookmarks with one click. You can find and navigate through all your bookmarks and folders using the bookmark button next to the search box.

New Add-ons Manager


Firefox 4 sports a new add-ons manager which integrates into the browser. However, the interface is still under construction and you cannot use the add-ons manager to browse and install add-ons yet. However, it is definitely much better than the earlier version and also has some new developer tools.

Mozilla also says that the add-ons manager UI will be changed before the final release, so don’t start falling in love with it yet.

Search and Switch to Open Tabs


Firefox 4 also has a hidden gem in the smart location bar, which will allow you to switch to an open URL by typing in the URL or searching for the title of the page. The feature is very handy if you have several open tabs and want to switch to it without navigating through all the tabs.

When you want to switch to an open tab, just start typing the URL or the title of the page and you will be shown an option to Switch to that open tab. Pretty neat.

Windows 7 Integration

firefox_4_windows_7_integration firefox_4_windows_7_jumplists

Firefox 4 tightly integrates into by having tab previews and Jumplists. Using the tab previews you can easily preview all open tabs. In addition to that the jumplists allows you to quickly perform tasks and open frequently opened URLs.

Native HTML5 WebM Videos Support


Firefox 4 has native support for WebM videos. WebM is an open source royalty free codec for HTML5 videos which is an alternative to H.264 and Theora codes (Learn more about WebM). In my tests HTML5 videos works pretty good on .

Speed and Other Benchmarks


Firefox 4 is definitely much more lighter and faster than Firefox 3.6 and it uses much less memory than the earlier versions. However, Firefox 4 is not yet the fastest browser and it was beaten by both Google Chrome 6 (dev) and Opera 10.60 in the Peacekeeper benchmarks I ran.


Firefox also failed the Acid 3 test, but the results were far better than Firefox 3.6. This shows a lot of improvements being done under the hood. Firefox 4 was also slower than in the SunSpider JavaScript Benchmark  and way too slow in the V8 benchmarks I ran (screenshots coming shortly).

Other Features

Firefox 4 also has Crash protection for Flash, QuickTime and other plugins, however, this was introduced in Firefox 3.6. Firefox 4 also has a HTML5 parser which allows you to run the latest apps, support for WebSockets for real-time online interactions like chatting and gaming and IndexedDB which will allow users to use offline storage.

If you have not yet downloaded Firefox 4 Beta 1, you can do it from here or visit this blog post on Mozilla to find out all the latest features available in Firefox 4.

Firefox 4 Beta 1 Available for Downloads

Mozilla has just announced the availability of Firefox 4 Beta 1 for downloads. The Firefox 4 Beta 1 gives a glimpse of the future of Firefox and the upcoming Firefox 4 release. The new features in Firefox 4 are pretty exciting and I am trying them out as we speak so keep an eye on the review for Firefox 4.


Firefox 4 Beta 1 has several new features which include:

New Add-Ons Manager: gives you more space to manage your Add-Ons, Themes and Plugins. Customizing your browser has never been easier!

HD Video: Watch hardware-accelerated, super-smooth, HD-quality HTML5 video on YouTube using the new WebM format.

Privacy improvements: Mozilla always puts privacy first, and this latest beta fixes flaws in some Web standards that could expose your browser history.

Crash Protection: Experience uninterrupted browsing (now available on all platforms) when a plugin crashes or freezes, you can resume browsing by simply refreshing the page.

Performance: We know that performance is important. In this version, we focused on improving responsiveness at start-up and during page loads. This is just the beginning for performance improvements in Firefox 4.

Firefox 4 Beta 1 fully integrates including videos and offline storage. The beta also sports a new look which Mozilla has been working on for a long time. If you are interested you can download the Firefox 4 Beta 1 from here. A full review of Firefox 4 beta 1 will be posted shortly, so stay tuned.

What to Expect From Firefox 4

Mike Beltzner, Mozilla’s Director of Firefox has recently made an announcement outlining a vision for Firefox 4 in a recent blog post.


This can as well be called an early product plan and he introduces it with the lines,

Today, I presented an early product plan for Firefox 4 to the Mozilla community (live, over the web!) to share our vision for the next version of Firefox, and what projects are underway to realize it. Then I invited everyone to get involved by joining our engineering or product development efforts.

The primary goal of Firefox 4 development will be according to Mike, making Firefox “super-duper fast”. Other features which they are aiming at are enabling new open web standards and allowing more user control over the browser and their browsing.

To better understand this, you can see the slide presentation Mike has prepared on his blog.

Now getting to the goals, open web standards and user control are already increasing day by day on Firefox. Firefox is quick to adapt to new web standards. Though, one thing to watch out for is how and by how much they are improving Firefox in terms of speed and making it super-duper fast as claimed. Firefox 3.7 is expected to become Firefox 4.0 by the end of this year.

Get the New Firefox 4 Look in Your Current Firefox

So you have installed Firefox 3.6 – the latest version of Firefox. One of the rich features of Firefox 3.6 is that you don’t require to restart the browser after installing an add-on or theme.

Upcoming Design of Firefox 4

Below is an image from the Mozilla Wiki which shows how the new interface of Firefox 4 might look.

Now if you are impressed with the upcoming Firefox design and want to try it now, the Fx4 add-on for Firefox is worth a try. This add on, merged with the Fx4 theme will give your current Firefox the new Firefox 4 look.

Install fx4 Firefox add-on.

Install Fx4 Firefox theme.

I tried both the theme and the extension and here is how my Firefox 3.6 looks:


Now that’s cool. The tab effects are impressive and the combo buttons (stop, refresh) reduce clutter. On this page, you can tell the developers about changes you’d like to see.