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Mozilla releases Firefox 3.5 beta

Stephen Shankland CNET News | April 28, 2009 4:26 AM PDT

Summary

Mozilla on Monday released beta 3.5 of Firefox, a revamp of the open-source web browser designed to include better performance, several new web-programming features and a private-browsing mode.
Mozilla on Monday released beta 3.5 of Firefox, a revamp of the open-source web browser designed to include better performance, several new web-programming features and a private-browsing mode.The earlier betas had been numbered 3.1, but Mozilla switched to the version 3.5 name after concluding the changes were more significant than it envisioned earlier. Mozilla has said earlier the fourth beta will be the last, with more polished release candidates expected before the final version of Firefox 3.5 is released. You can download Firefox 3.5 beta 4 from CNET Download.com for Windows and Mac. The software emerges amid what has become a fiercely competitive browser market. Microsoft has released a significant new version, Internet Explorer 8, while Google has entered the market with Chrome, and Apple is trying to secure a Windows foothold for its Safari browser. Firefox holds second place in market share to IE.Among the changes compared with the current Firefox 3.0.x versions are:
  • The faster TraceMonkey engine for running websites' JavaScript programs
  • Built-in JSON (JavaScript Object Notation) technology for exchanging data between servers and browsers
  • Support for tags to describe audio and video content the way images have been available for years
  • Private-browsing mode for leaving no traces on your computer while surfing
  • Support for technology to let permitted applications know the user's location
  • Support for the web workers standard for letting a browser perform processing in the background without holding back a web application's user interface
With this beta, there are a number of known problems with Gmail and with AVG SafeSearch v8.0 on Windows, and of course many of those extensions that are so popular on Firefox could break. For details, check the release notes.This article was originally posted on CNET News.

Talkback Most Recent of 21 Talkback(s)

  • Firefox Beta 3.5
    It sounds great and I will eventually use it. Normally I am not too concerned about downloading RCs but when the RC comes out I will decline.

    I only ever replace my Firefox when the authors of all the more seriously useful add-ons I use have updated their programs.

    But it certainly looks interesting. I don't look at naughty websites, however anything that stops this government's all-pervasive search for everything about us is no bad thing! Although I am referring to British, it could read American as well!

    Ampers
    ZDNet Gravatar
    ampers@...
    28th Apr 2009
  • If Jacqui Smith has her way then Private Browsing won't help either...
    ...because they are going directly to the ISPs for the info sad
    ZDNet Gravatar
    DevJonny
    28th Apr 2009
  • RE: Mozilla releases Firefox 3.5 beta
    They sure are taking their sweet team getting this software released. Speed up the process a bit and release this thing already.
    ZDNet Gravatar
    Loverock Davidson
    28th Apr 2009
  • Firefox 3.5 beta
    I thought you didn't like open source.
    ZDNet Gravatar
    Clayman1000x
    29th Apr 2009
  • But will it fully support gestures on OSX?
    I use the lastest version of Firefox 3 instead of Safari but Firefox doesn't use gestures completely, like the 3-finger swipe to move back and forward pages.
    ZDNet Gravatar
    jmiller1978
    28th Apr 2009
  • No tab isolation?
    Firefox is being left behind by their rivals, er,
    sponsors
    ZDNet Gravatar
    markbn
    28th Apr 2009
  • ZDNet Gravatar
    techboy_z
    28th Apr 2009
  • Say its overrated
    Say it is overrated when you have 15 tabs and the whole application goes down in a screaming heap instead of just the one tab dying. Processor isolation should have happened in this release - yet another example of why there is an exodus from Firefox like the rats jumping off the ship before it sinks.
    ZDNet Gravatar
    Kaiwai
    28th Apr 2009
  • What exodus?
    The only browser currently losing market share is IE, as usual. Tab isolation is a good idea in theory, but as I posted below, there are downsides, especially when you apply it to a browser like FF that has an extensions platform already built into it. For me, though, it's not important, because I don't have browser crashes (or any other program crashes) at all - FF3, Opera, Chrome, Safari, Flock and IE8 all run flawlessly on my PCs. The only thing that tab isolation has done on my PCs is use up valuable memory resources.
    ZDNet Gravatar
    eMJayy
    28th Apr 2009
  • RE: Say its overrated
    i have never had any problems with more than 15 tabs open. in fact, i've always tend to open up to 2 or 3 windows with 10-15 tabs in each window with no problems at all. and i have quite abit of add-ons tacked on as well. no problems.

    what exodus are you talking about? they're still increasing market share.

    with processor isolation, it's just gonna use up more RAM. i'm not taking any suggestions of buying more cheap RAM, because i don't see the logic of running out to buy more RAM no matter how cheap it is just so that i can browse using Chrome, when Firefox does the job well already.
    ZDNet Gravatar
    jackhammer84
    28th Apr 2009
  • Tab Isolation has its downsides
    Tab isolation has been shown to make browsers like Chrome and IE8 utilize significantly more Ram than other browsers when many tabs are opened, due to the fact that resources that were previously shared between tabs now have to be duplicated for each tab. Imagine what would happen if they added that feature on top of all the extensions that many FF users run. It would be a nightmare.
    ZDNet Gravatar
    eMJayy
    28th Apr 2009
  • So tired of RAM arguments.....
    http://www.newegg.com/Product/Product.aspx?Item=N82E16820178164

    what is the point of cheep accessible RAM if developers can't use it.

    If you want firefox loaded with extensions and tab isolation drop $20 bucks and get some memory.
    ZDNet Gravatar
    JoeMama_z
    28th Apr 2009
  • I have to agree
    It's time that people upgraded their computers IMMEDIATELY to the highest amount of RAM they can take, and an OS that can take advantage of it!

    There is NO reason for a computer to not be sold with the highest amount of RAM it can hold (unless we are talking about i7 computers which can hold like.... 64gigs of memory).
    ZDNet Gravatar
    Lerianis
    28th Apr 2009
  • Besides
    Tab Isolation is not going to make or break Firefox. It is but ONE feature that I would simply like to see become an OPTION. So FF can't do one thing, big deal. What, you want FF to wipe for you too?

    Actually, I could do without the Sandbox. I DO think it would be cool if FF could mimic Chrome's ability to pull tabs out of windows to create new windows, or to pin them in. I can live without it though.
    ZDNet Gravatar
    midenginedrift
    29th Apr 2009
  • No tab isolation and No protected mode
    No tab isolation and No protected mode: Firefox sucks!
    ZDNet Gravatar
    qmlscycrajg
    30th Apr 2009

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