Firefix appears to be adding malicious code to the <head> of served pages
When inspecting (Web developer / inspector) any page (eg http://bostest.aqmcl.com/phpinfo.php), Firefox reports two style tags that contain suspicious code. Those tags are not showed in Chrome, internet exploder or Edge. The same happens on all webpages on three linked PCs but not on a forth which is not synchronised to the other three. See screen shot attached...
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Found it... as a mechanism for blocking ads Adblocker injects the css so that hundreds of CSS classes that are commonly used to display ads are changed to displaying nothing. Only wasted 4+ hours of my life chasing it down.
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Chosen Solution
Found it... as a mechanism for blocking ads Adblocker injects the css so that hundreds of CSS classes that are commonly used to display ads are changed to displaying nothing. Only wasted 4+ hours of my life chasing it down.
That was very good work. Well Done. Please flag your last post as Solved Problem as this can help others with similar problems.