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Thread: Extjs is cool; but very slow on firefox !

  1. #11
    Sencha Developer
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    Sep 2008
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    Antioch, IL
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    Default

    I wonder if it might be some other factor with your browser... open tabs, etc.

    A quick Google search returns a number of (sometimes contradicting, and not all scientific) studies:
    - http://lifehacker.com/5044668/beta-b...ich-is-fastest
    - http://news.cnet.com/8301-1001_3-10030888-92.html
    - http://www.gadgets-reviews.com/chrom...e-firefox.html

    The point being that you might have a memory issue, which could be caused by any number of factors. All of the studies I read seemed to show that Firefox is not the most efficient browser for managing memory (nor always the worst), so see if there's anything you can clean up.

  2. #12

    Default

    Even faster in Google Chrome. I'm very impressed by the speed of Chrome. But FireFox is a close second, with IE6 being snail.. Why do so many people (and corporate environments) still insist on using M$ IE?

  3. #13
    Sencha User
    Join Date
    Jun 2011
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    185

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    Now in version 4.x
    Ext grid is very slow in FireFox, only in Firefox...

    Example: http://dev.sencha.com/deploy/ext-4.0...rray-grid.html

  4. #14
    Sencha User tobiu's Avatar
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    May 2007
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    Munich (Germany)
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    2,751

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    try out the 4.1 branch, should be much better than 4.0.7
    Best regards
    Tobias Uhlig

  5. #15
    Sencha User
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    Jun 2011
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    Default

    This example isn't in v4.1?


  6. #16
    Sencha User
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    Mar 2007
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    7,854

    Default

    Closing this ancient thread - direct 4.x performance issues to the current threads in the 4.x forums please.

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