gufw wrong identifacation and no scroll bar on chromium ?

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http://crunchbang.org – hello when i click on the lock to enable gufw it says wrong identifacation?and when using my default browser chromium there is no scroll bar up and down arrows so i have to hold the highlighted bit and hold my mouse button on my Acer Aspire 5536 laptop,any ideas about either problem please?thank you. (HowTos)