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Mozilla releases seventh Firefox 4 Beta

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On November 11, 2010, 6:50 AM

Mozilla has announced the release of a new beta build for the long-time coming Firefox 4. Unlike the last couple beta releases which mostly just tweaked a few things here and there, this one actually brings along a couple of new features to get you excited. Most notably, it incorporates the JagerMonkey JIT compiler into the new SpiderMonkey engine, which will the browser a performance boost on script-heavy sites.

According to the company's internal benchmarking, Firefox 4 Beta 7 is three times faster than the current Firefox 3.6.12 on both Kraken and Sunspider JavaScript benchmarks, and five times faster than Firefox 3.6.12 on the V8 benchmark. The updated browser is also neck-and-neck with competing browsers in terms of performance.


Firefox 4 beta 7 is a "feature complete" beta so a few other things have changed besides JavaScript rendering. There’s an upgraded URL bar which now shows the destination of hyperlinks as soon as you hover above a link, updates to the password manager and Panorama (previously known as Tab Candy), a search feature that works across open tabs, better support for hardware acceleration, and brings support for OpenType, a font format that allows for richer, more “book like” typography on the web. Lastly, Firefox 4 beta 7 also includes an add-on API that has been deemed complete enough for third-party developers to begin porting over their creations from older versions of Firefox.

If you’re already running a previous beta of Firefox 4 you should see an automatic update soon. Otherwise, if you would like to download beta 7 for Windows, Mac or Linux 32-bit 64-bit, just choose your operating system.

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User Comments: 34

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  1. I have been switching between chrome 8 and Firefox 4 beta 7. They are both very good browsers, hard to choose between them really. I will keep testing them both to try and find the best one. Oh the choices!

  2. I like the last updates for firefox but the plugin container exe is killing my pc at work(which the it will not update)

  3. I wont ever use anything but IE, i know im stubborn LOL

  4. Beta 7. We're getting closer to the release. There is a lot hanging on the release of this browser. This will determine if firefox can hold on to its market position or lose it to Chrome and others..

    I personally am rooting for Firefox..

  5. Honestly I'm hoping they make major improvements to it before it comes out because at the moment, I'm not too impressed. That's just me though.

  6. What I don't like about it is the lack of the status bar at the bottom of the frame. I like seeing the percentage of download and other items. I cannot find where to turn it on. I sent a feedback "sad" message but of course no response. Otherwise, not many problems with this version and I have not tested everything, every aspect of the release. Some items have to be clicked on more than once to get them to start. I like the F1 add-on, it's better than AddThis plug-in but not as extensive.

  7. it's much much faster than the beta 6. some appearance change too. the beta 6 really struggles when opening .pdf file and many video tabs.

  8. Looks great. Can't wait to see the final version

  9. This version seems to be hanging always in Win7.

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