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Firefox stops responding and workstation loses network connectivity

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  • Last reply by FredMcD

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I have Firefox 59.0.2 running on a Win 7 Pro machine and a few times a week Firefox won't load any website. When this happens the workstation completely loses network connectivity. If I use Chrome and don't open Firefox at all for a couple of weeks everything is fine. This issue didn't start happening until I started doing Firefox updates to my original Firefox (sorry, don't know the version of the old one). For the longest time I was running an older Firefox and within the last 6 months started doing updates. It was around this time that this issue surfaced.

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Separate Security Issue: Update your Flash Player or remove it using these links; http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: Version 29.0.0.140

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

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When Firefox stops working, did you try using Win IE? If it also does not work, the problem could be your modem or ISP.

Does the problem seem to have a foreseeable timetable?


Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}