While by no means a be-all and end-all fix - here is a simple add on for Firefox in which you can set the default copy method to plain text: <a href="https:&#x2F;&#x2F;addons.mozilla.org&#x2F;en-us&#x2F;firefox&#x2F;addon&#x2F;copy-as-plain-text&#x2F;" rel="nofollow">https:&#x2F;&#x2F;addons.mozilla.org&#x2F;en-us&#x2F;firefox&#x2F;addon&#x2F;copy-as-plain...</a>