Firefox does not (created 9/10/13-241 MB). Downloaded new version but "cannot open only one version at a time" & other version will not quit smoking. Tried several thing

iMac 10.8.5 0s;
Can not find the current version of Firefox. When click on icon in the Application folder, Firefox comes on top of bar (Firefox, file, editing, etc.), but by clicking on a link does not work (history/bookmarks, etc.)

Downloaded the new version but cannot be installed since the old open version but can not delete/trash old version.

PLEASE HELP; has tried various ways to get support/ask questions. So - so love Firefox, Safari and won't use Chrome (takes up your whole computer too!) Need to download and save a TedTalk for my gr 12 Biology class on Monday (I'm a teacher in the public school in NYC). Cannot do using Safari (?) Can't use Firefox at school (?) [email protected]

You can get more information here:
http://www.ehow.com/how_5110396_open-activity-monitor.html?DMSP=manual

Tags: Firefox

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