Xiaomi devices and Battery Optimizers - Filter Chrome

Background

Xiaomi is notorious for their aggressive battery optimization so we have to exempt Filter Chrome from this aggressive battery optimization.  Thankfully, Xiaomi does provide a method to have the permissions "stick." 

Solutions

Make Filter Chrome Run in the Background

Newer Models: Device Settings > Installed Apps > Filter Chrome

• A.   Toggle "Autostart" On
• B.   Inside "Other Permissions" enable: "Modify system settings" & "Start in background"
• C.   Inside "Battery Saver" select "No restrictions"

App Security

On Xiaomi devices, for enhanced security, we need to "lock" Filter Chrome.  Here are the steps:

• Open Filter Chrome App
  
• Now, tap on the Recent Apps Dialog button
  
• Press and hold Filter Chrome's card and "lock" Filter Chrome