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How to bring back firefox default Menu button in Ubuntu 12.04.1 LTS

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Open the add-ons manager by pressing the shortcut key "Ctrl+Shift+A" Locate the add-on "Global Menu Bar Integration" and disable it by clicking the "Disable" then click on the restart buttons or close the browser. Then restart the browser and Enjoy the Menu Button
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jQuery noConflict() method

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<a href="http://www.linksmanagement.com">Link Building</a> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> < html xmlns = "http://www.w3.org/1999/xhtml">     < head >         < meta http-equiv = "Content-Type" content = "text/html; charset=utf-8" />         < title > New Web Project </ title >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             var jq = jQuery . noConflict ();             jq ( document ). ready ( function (){   ...
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Select all checked elements :

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<!DOCTYPE html > < html >     < head >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             $ ( document ). ready ( function (){                 $ ( ":checked" ). wrap ( "<span style='background-color:red' />" );             });         </ script >     </ head >     < body >         < form action = "">             Name: < input type = ...
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Select the pre-selected item(s) in a drop down list:

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<!DOCTYPE html > < html >     < head >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             $ ( document ). ready ( function (){                 $ ( ":selected" ). css ( "background-color" , "red" );             });         </ script >     </ head >     < body >         < form action = "">             Name: < input type = "text" name = "us...
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Select all the disabled from elements:

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<!DOCTYPE html > < html >     < head >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             $ ( document ). ready ( function (){                 $ ( ":disabled" ). css ( "background-color" , "red" );             });         </ script >     </ head >     < body >         < form action = "">             Name: < input type = "text" name = "us...
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Select all the enabled from elements:

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<!DOCTYPE html > < html >     < head >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             $ ( document ). ready ( function (){                 $ ( ":enabled" ). css ( "background-color" , "red" );             });         </ script >     </ head >     < body >         < form action = "">             Name: < input type = "text" name = "use...
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Select input elements with type=”file”

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<!DOCTYPE html > < html >     < head >         < script type = "text/javascript" src = "lib/jquery/jquery-1.3.2.js">         </ script >         < script type = "text/javascript">             $ ( document ). ready ( function (){                 $ ( ":file" ). css ( "background-color" , "red" );             });         </ script >     </ head >     < body >         < form action = "">             Name: < input type = "text" name = "user" ...
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