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Is this true ? Firefox dev team can release an update. The vulnerability allows an attacker to execute code on your Windows workstation. The exploit is in the w

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Is this really happening? Firefox dev team can release an update. The vulnerability allows an attacker to execute code on your Windows workstation. The exploit is in the wild, meaning it’s now public and every hacker on the planet has access to it. There is no fix at the time of this writing."

Is this really happening? Firefox dev team can release an update. The vulnerability allows an attacker to execute code on your Windows workstation. The exploit is in the wild, meaning it’s now public and every hacker on the planet has access to it. There is no fix at the time of this writing."

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Hi gcroft1,

Thank you for your questions, yes Mozilla is aware of the issue and is working on a fix to go out in an update as soon as possible.

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Till then you could consider to disable JavaScript   (and enable it when needed) See:
https://support.mozilla.org/en-US/kb/forum-response-disable-javascript
And also:
'JavaScript settings and preferences for interactive web pages' :
          http://mzl.la/1BAQTqA

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As Happy112 points out, Firefox 50.0.2 directly addresses the bug which leads to the potential exploit.

Update Firefox to the latest release

If the updater doesn't work for you, you can download a full installer (scroll down to your preferred language):

Note: For maximum plugin compatibility, choose the regular Windows version (32-bit version) rather than the 64-bit version. The 64-bit version for Windows can only use the Flash and Silverlight plugins.