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How to disable flash in firefox 16.0.1 using about:config or some configurable way

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We have some legacy codebase which uses a older version of firefox(16.0.1). I am struggling to find preferences to disable add-ons in firefox 16.0.1 Can some tell me the about:config configuration to disable add-ons for firefox 16.0.1


P.S:- Upgrading firefox is huge task, so avoiding it for now.

We have some legacy codebase which uses a older version of firefox(16.0.1). I am struggling to find preferences to disable add-ons in firefox 16.0.1 Can some tell me the about:config configuration to disable add-ons for firefox 16.0.1 P.S:- Upgrading firefox is huge task, so avoiding it for now.

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Open the Add-ons Manager by Pressing the Alt or F10 key to bring up the tool bar. Followed by; Tools > Add-ons.

Hot key; <Control> (Mac: <Command>) <Shift> A)

On the left side of the page, select Plugins.

BTW; At the top right is a link to check your plugins.