===== Reset Firefox =====

Firefox seems to be slow, reset it:

  Open a new tab 
  Navigate to about:support  in your address bar to bring up the Troubleshooting Information page.
  Click on Reset
  
For information:
  You will loose Extensions and themes, website-specific preferences, search engines, download history, DOM storage, security settings, download actions, plugin settings, toolbar customizations, user styles and social features will be removed. 

===== Disable Java updates check in Firefox =====

  Open new Tab
  Navigate to about:config
  Accept security warning
  Change "extensions.blocklist.enabled" to "false" (Simply double-click on that)
  
===== Firefox save password =====

To save your password in a flat file you can use a script in python:
  https://github.com/christophetd/firepwned
  
  python firepwned.py --profile "C:\Users\Christophe\AppData\Roaming\Mozilla\Firefox\Profiles\xxxxxx.default"