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why when I open multiple tabs in Facebook, the tabs load very slowly and most times don't load at all?

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Why when I open multiple tabs in Facebook, the tabs load very slowly and most times don't load at all?

Why when I open multiple tabs in Facebook, the tabs load very slowly and most times don't load at all?

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The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions.

You can try to decrease the value of the pref network.http.max-connections from 255 to a more modest setting like 30 as used in Firefox 3 versions.