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when previewing my website in Dreamweaver flash crashed - I need to change the security settings but don't know how to do this

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I use Dreamweaver and Adobe Bridge to create slide shows on my website. When 'previewing' the slideshow - in Dreamweaver it opens Firefox - it crashed and the dialogue box opens telling me to change my 'settings' - it doesn't do this if I preview in IE - which I don't understand. I need help in knowing where to go to change the security settings so that this doesn't happen. Incidentally, when I am on the web through Firefox, my website slideshows work perfectly>

I use Dreamweaver and Adobe Bridge to create slide shows on my website. When 'previewing' the slideshow - in Dreamweaver it opens Firefox - it crashed and the dialogue box opens telling me to change my 'settings' - it doesn't do this if I preview in IE - which I don't understand. I need help in knowing where to go to change the security settings so that this doesn't happen. Incidentally, when I am on the web through Firefox, my website slideshows work perfectly>

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You can set the pref dom.ipc.plugins.timeoutSecs to to -1 on the about:config page to disable the timeout.

See also http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.

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I am sorry but I haven't a clue what you are talking about - I thought I needed to do something in 'settings' in order for my system to allow the flash plug in - please note that flash works perfectly when I am on the internet - and when viewing slideshows on my website - it is only when I am previewing that the problem occurs

Thank you