Can anyone tell me what this is in the html editor?

[Tracy_Boesken]

Whenever I go into the html editor it adds this block of code (I am not adding) that doesn't appear on the visual editor in Marketo but appears as spaces on sent sample.

This is how the sample delivers:

I remove it but it reappears.

[SanfordWhiteman · Accepted solution]

Every time something like this comes up, it’s due to a browser add-on, not Marketo. Check this one: https://chrome.google.com/webstore/detail/pericles-text-to-speech-s/oacindbdmlbdeidohafnfocfckkhjlbg...

[Tracy_Boesken]

Thanks @SanfordWhiteman !...removing it now.