i got win xp sp2 , firefox 39.0.3. , and problem with video, flash is old buth dont see new upgrades. flash:scrnot found with x ower screen when try to play some video on net... i try to update flash , buth also, like with java, start to working on upgrade, and then stop, and send note that is not completed... shockwave flash 18,0.0,203 Java(TM) Platform SE 8 U25 11.25.2.18. for both is written that they are vunerable and need upgrade, buth when i try dont work. i read abouth html5 that he coud doit some things buth it still dont suport all like flash. and flash is about quit of upgrading on xp... laptop is hp compaq 6730b , 2gb ram, what sistem is worth to install if xp must be replaced? p.s. i turn off addblock plus when this problem with scrnotfound is on screen, restart page, and it is same thing... help please, txs