Step 1: Download the file below
Step 2: Extract the downloaded file
Step 3: Copy this url link about:debugging#/runtime/this-firefox and paste to FireFox browser
Step 4: Select Load Temporary Add-on, open the extracted file
Step 5: Choose manifest.json and open it.
Coin98 Extension Wallet is added on FireFox. Now users can connect with DApps via Coin98 Extension Wallet with ease.