My laptop is not a super new model but it's not that old either -- i bought it in 2011. It used to be just fine for everyday use, but lately because all these annoying dudes in labs update their stuff every week, the latest browser and flash player and content in general is too heavy for my machine and its getting slow. So i was wondering if i can downgrade to software used 2-3 years ago? I already found Firefox v18 and Flash Player v10 but i dont want to install them until i get some expert advice