[USB OS] How to increase firefox browse speed on Ubuntu which install in USB driver

[USB OS] How to increase firefox browse speed on Ubuntu which install in USB driver

1. 
   Open firefox type "about:config"


2. 
   Add a string was called "browser.cache.disk.parent_directory". Point path to  "/dev/shm"
   
   /dev/shm is memory location


3. 
   Setting "browser.cache.disk.enable" is "true"


4. 
   Restart Firefox

Check Firefox

Open firefox type "about:cache"

Will show 

Disk cache device

Number of entries: 465

Maximum storage size: 378880 KiB

Storage in use: 7610 KiB

Cache Directory: /dev/shm/Cache

List Cache Entries

Reference :

• 
  [Ubuntu] Firefox use RAMDisk