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I cannot watch any movies or videos online. Neither the video nor audio plays.

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Each time I try to open Firefox I get an error message saying Windows cannot verify the path or file. And when I click ok, the browser opens. And when I check the plugin page, the plugins are all up to date - Flash,Real,Windows Media Player. Should I go for an older version of Firefox or newer? Using Firefox 3.6.4 on XP on a desktop.

Each time I try to open Firefox I get an error message saying Windows cannot verify the path or file. And when I click ok, the browser opens. And when I check the plugin page, the plugins are all up to date - Flash,Real,Windows Media Player. Should I go for an older version of Firefox or newer? Using Firefox 3.6.4 on XP on a desktop.

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

You can use "Disable all add-ons" on the Safe mode start window to disable all extensions.

You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

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Thanks.

Installed an older version of firefox (3.5.4) Things seem to be perfect now.

Thank you!