@Sugandhalaya
You can use Overwatch with Chrome if you want. but can you try to clear your browser cache just in case.
Please let me know if it's not working.
Here's how to clear your Mozilla Firefox (most recent version) cache:
- Click Tools from the main menu at the top of the Firefox window.
- Select Options (the Options window will appear).
- Select the Advanced tab on the top right of the window.
- Click the Network tab.
- In the Offline Web Content and User Data section, click Clear Now.
- Once the clearing is complete click OK at the bottom of the Options window.
- Close all Firefox windows and restart.
Hope this helps!