I do not know the code to do that but this is a option may want to consider. click read more info at bottom right of page. https://addons.mozilla.org/en-US/firefox/addon/tab-auto-refresh/

Please let us know if this solved your issue or if need further assistance.

Separate Security Issue: Update your Flash Player 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 27.0.0.183

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

FredMcD, you could at least take a moment to edit the generic posting for a Linux user as that is more for Windows.

I'm thinking the Flash 13.1 is due to using the libfreshwrapper-flashplayer to use Pepper Flash in Firefox. The NPAPI version for Linux at time was 11.2 esr.

So even if 27.0.0.183 (NPAPI) is used you would need to get rid of the libfreshwrapper-flashplayer so to not have Pepper Flash be detected also.

Yes I know Firefox for Windows and Mac cannot use the Pepper Flash (PPAPI) but you could on Linux with this workaround.