Help with Firefox?

Hey /tech/, I need your help with something.
Everytime I open Mozilla Firefox it re-installs itself and all of its add-ons. It's really annoying and it slows my crappy computer up quite alot. I don't want to give up on mozilla or any of my add-ons, and I tried to tinker around with Mozilla's settings, but it just won't work.

opera

http://www.christianlouboutinbuy.net/Christian-Louboutin-Boot/  discount Christian Louboutin
http://www.christianlouboutinbuy.net/Jimmy-Choo-Handbags/  discount Jimmy Choo
http://www.christianlouboutinbuy.net/Yves-Saint-Laurent-Shoes/  discount Yves Saint Laurent

<A href="http://www.patekphilippewatches.us/Rolex/Day%20Date%20II/">Rolex Day-Date II watch for sale</A><BR><A href="http://www.patekphilippewatches.us/">watches replica</A><BR><A href="http://www.patekphilippewatches.us">watches for sale</A><BR><A href="http://www.patekphilippewatches.us/">replica watch</A><BR><A href="http://www.patekphilippewatches.us/">cheap replica watches</A><BR><A href="http://www.patekphilippewatches.us/">replica watches</A><BR><A href="http://www.patekphilippewatches.us/Rado/">Rado watches</A><BR><A href="http://www.patekphilippewatches.us/Rolex/Daytona/">Rolex Daytona watches</A><BR><A href="http://www.patekphilippewatches.us/Chopard/">replica chopard</A><BR><A href="http://www.patekphilippewatches.us/Piaget/">Piaget replica</A><BR><A href="http://www.patekphilippewatches.us/Vacheron-Constantin/">replica Vacheron Constantin</A><BR><A href="http://www.patekphilippewatches.us/Maurice-Lacroix/">Maurice Lacroix watch for sale</A><BR>

<A href="http://www.iwcwatches.us">watches for sale</A><BR><A href="http://www.iwcwatches.us/">cheap replica watches</A><BR><A href="http://www.iwcwatches.us/">replica watch</A><BR><A href="http://www.iwcwatches.us/Franck-Muller/">replica Franck Muller</A><BR><A href="http://www.iwcwatches.us/Rolex/">replica Rolex</A><BR><A href="http://www.iwcwatches.us/Rolex/DateJust/">Rolex Datejust watches</A><BR><A href="http://www.iwcwatches.us/Rolex/Yachtmaster/">Yachtmaster watches</A><BR><A href="http://www.iwcwatches.us/Breitling/">replica Breitling</A><BR><A href="http://www.iwcwatches.us/Rolex/Submariner/">Rolex Submariner watch for sale</A><BR>

<A href="http://www.patekphilippewatches.us/">cheap replica watches</A><BR><A href="http://www.patekphilippewatches.us">cheap fake watches</A><BR><A href="http://www.patekphilippewatches.us/">watches replica</A><BR><A href="http://www.patekphilippewatches.us/Breguet/">Breguet replica</A><BR><A href="http://www.patekphilippewatches.us/Rolex/Air%20King/">Rolex Air-King replica</A><BR><A href="http://www.patekphilippewatches.us/Patek-Philippe/">replica Patek Philippe</A><BR><A href="http://www.patekphilippewatches.us/Piaget/">Piaget watches</A><BR><A href="http://www.patekphilippewatches.us/Breguet/">replica Breguet</A><BR><A href="http://www.patekphilippewatches.us/Alain-Silberstein/">Alain Silberstein watch for sale</A><BR><A href="http://www.patekphilippewatches.us/Glashutte/">replica Glashutte</A><BR><A href="http://www.patekphilippewatches.us/Jaquet-Droz/">replica Jaquet droz</A><BR><A href="http://www.patekphilippewatches.us/Breitling/">Breitling watches</A><BR>

The Mbt have different variety durability, designs and style, Mbt shoes are technologically highly developed to make your walking exercises more effective, The Mbt sale Now! Free Shipping! NO Tax! http://www.mbt-antishoes.net.
The ghd iv styler creates  the hair you want,the cheapest & high quality,  bunched up due to the unique design.The ghd hair straighteners purple color and high technology is the features of this type worthwhile for you to buy it ,creates  the hair you want,the ghd with cheapest & high quality, save up 50%off,free shipping!no tax! http://www.ghdivstyle.com
The Christian Louboutin shoes with excellent in quality and durable,christian louboutin sale fashion design to Show your special style,Christian Louboutin Highlight the females gentle and lovely, beautiful and not make public of mature. http://www.christianlouboutindesigners.com