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[Fx22] New Tab Page speculative connection on hovering sites

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  • Last reply by AliceWyman
  1. jscher2000 179 posts
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    According to Bug 1003680 comment 12 there is a workaround using about:config:

    (1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

    (2) In the search box above the list, type or paste specu and pause while the list is filtered

    (3) Double-click the network.http.speculative-parallel-limit and set it to 0 (zero).

    Is this appropriate for the article?

    I think it is a broader question whether this can happen on pages other than the new tab page: https://support.mozilla.org/questions/991116

    According to [https://bugzilla.mozilla.org/show_bug.cgi?id=1003680#c12 Bug 1003680 comment 12] there is a workaround using about:config: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful. (2) In the search box above the list, type or paste '''specu''' and pause while the list is filtered (3) Double-click the '''network.http.speculative-parallel-limit''' and set it to 0 (zero). Is this appropriate for the article? I think it is a broader question whether this can happen on pages other than the new tab page: https://support.mozilla.org/questions/991116
  2. AliceWyman 4161 posts
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    jscher2000 said

    According to Bug 1003680 comment 12 there is a workaround using about:config: (1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful. (2) In the search box above the list, type or paste specu and pause while the list is filtered (3) Double-click the network.http.speculative-parallel-limit and set it to 0 (zero). Is this appropriate for the article? I think it is a broader question whether this can happen on pages other than the new tab page: https://support.mozilla.org/questions/991116

    This was overlooked. Bug 1003680 comment 12 says this:


    Gijs Kruitbosch 2014-05-02 07:49:34 PDT
    
    <snip> it's the speculative connection code. This was implemented in bug 790882, and there was some discussion in bug 814169 about having a pref to disable the feature. The bug was wontfixed, so there isn't a simple on/off pref.
    
    However, as bug 814169 comment 16 points out, you can set the following pref:
    
    (In reply to Honza Bambas (:mayhemer) from comment #16)
    > Try setting 'network.http.speculative-parallel-limit' to 0.
    
    And I've verified that that stops the speculative connections.
    <snip>
    

    Here's the bug where this was implemented and Michael Verdi's comment:

    • Bug 790882 - [New Tab Page] Speculatively open connections for sites when hovering them (Fixed in Firefox 22)
    Verdi [:verdi] 2013-05-09 13:19:11 PDT
    
    (In reply to :Gavin Sharp (use gavin@gavinsharp.com for email) from comment #18)
    > Sounds like we've made a call on privacy here. I agree that a user doc on
    > SUMO would be valuable (though I think it should cover speculative
    > connections in general, not just this one), flagging that with
    > user-doc-needed.
    
    It looks like this is the article we'd add this information to:  https://support.mozilla.org/en-US/kb/how-stop-firefox-automatically-making-connections
    
    Is there a way for someone to turn this off if they want?
    

    I added a Needs Change entry for this article, which will show up when editing the article, as well as in the KB Dashboard overview "Needs update" column and in the Need Changes list: [Fx22] New Tab Page speculative connection on hovering sites (see discussion)

    Feel free to make the edit yourself.

    ''jscher2000 [[#post-9562|said]]'' <blockquote> According to [https://bugzilla.mozilla.org/show_bug.cgi?id=1003680#c12 Bug 1003680 comment 12] there is a workaround using about:config: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful. (2) In the search box above the list, type or paste '''specu''' and pause while the list is filtered (3) Double-click the '''network.http.speculative-parallel-limit''' and set it to 0 (zero). Is this appropriate for the article? I think it is a broader question whether this can happen on pages other than the new tab page: https://support.mozilla.org/questions/991116 </blockquote> This was overlooked. [https://bugzilla.mozilla.org/show_bug.cgi?id=1003680#c12 Bug 1003680 comment 12] says this: ----- Gijs Kruitbosch 2014-05-02 07:49:34 PDT <snip> it's the speculative connection code. This was implemented in [https://bugzilla.mozilla.org/show_bug.cgi?id=790882 bug 790882], and there was some discussion in [https://bugzilla.mozilla.org/show_bug.cgi?id=814169 bug 814169] about having a pref to disable the feature. The bug was wontfixed, so there isn't a simple on/off pref. However, as [https://bugzilla.mozilla.org/show_bug.cgi?id=814169#c16 bug 814169 comment 16] points out, you can set the following pref: (In reply to Honza Bambas (:mayhemer) from comment #16) > Try setting 'network.http.speculative-parallel-limit' to 0. And I've verified that that stops the speculative connections. <snip> ----- Here's the bug where this was implemented and Michael Verdi's comment: *[https://bugzilla.mozilla.org/show_bug.cgi?id=790882 Bug 790882] - [New Tab Page] Speculatively open connections for sites when hovering them (Fixed in Firefox 22) Verdi [:verdi] 2013-05-09 13:19:11 PDT (In reply to :Gavin Sharp (use gavin@gavinsharp.com for email) from comment #18) > Sounds like we've made a call on privacy here. I agree that a user doc on > SUMO would be valuable (though I think it should cover speculative > connections in general, not just this one), flagging that with > user-doc-needed. It looks like this is the article we'd add this information to: https://support.mozilla.org/en-US/kb/how-stop-firefox-automatically-making-connections Is there a way for someone to turn this off if they want? ----- I added a '''Needs Change''' entry for this article, which will show up when editing the article, as well as in the [/en-US/contributors/kb-overview KB Dashboard overview] "Needs update" column and in the [/en-US/contributors/need-changes Need Changes] list: [Fx22] New Tab Page speculative connection on hovering sites (see discussion) Feel free to make the edit yourself.
    Modified by AliceWyman on
  3. AliceWyman 4161 posts
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    P.S. This is what the current "New Tab Page" section says, that needs to be updated : {for fx22}

    New Tab Page

    To improve the loading speed of commonly visited websites, Firefox will open connections to sites when the user hovers their mouse over thumbnails on the New Tab Page. In the event that the user clicks on the thumbnail, the site can begin loading faster since some of the work was already started in advance. Currently, there is not a way to disable this kind of prefetching, but you can always turn off New Tab Page thumbnails. {/for}

    P.S. This is what the current "New Tab Page" section says, that needs to be updated : {for fx22} = New Tab Page= To improve the loading speed of commonly visited websites, Firefox will open connections to sites when the user hovers their mouse over thumbnails on the New Tab Page. In the event that the user clicks on the thumbnail, the site can begin loading faster since some of the work was already started in advance. Currently, there is not a way to disable this kind of prefetching, but you can always [[New Tab Page – show, hide and customize top sites#w_how-do-i-turn-the-new-tab-page-off|turn off New Tab Page thumbnails]]. {/for}