UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36

Steps to reproduce the problem:
1. Install the plugin
2. Disable and/or uninstall the plugin
3. Open Developer Tools on some page that might have any js or css unification issues (by having several local js and/or css loaded separately)

What is the expected behavior?
Shouldn't have any trace of pagespeed if I have either disabled or uninstalled it.

What went wrong?
Still having pagespeed unifiying local css and js files (something like "route/style1,style2,stylen.css,hash.pagespeed.cf.anotherhash.css" for css files and same for js files). It also appends a bunch of <script>eval(mod_pagespeed_hash);</script>.

WebStore page: https://chrome.google.com/webstore/detail/pagespeed-insights-with-p/lanlbpjbalfkflkhegagflkgcfklnbnh

Did this work before? N/A 

Chrome version: 50.0.2661.86  Channel: stable
OS Version: Ubuntu Desktop 14.04
Flash Version: Shockwave Flash 21.0 r0

Happens of both Google Chrome (google-chrome-stable) and Chromium.
I did reinstall Chrome, but still doing it.