I assume that you already tried all the way to remove TremendousCoupon or other Adware from computer using normal methods like uninstalling miscellaneous software/extension from your computer and etc.
Step 1: Download Software removal tool by Google on your computer.
Step 2: Install the software like the same way you install other software.
Step 3: Restart your computer (by default the software will ask you to do the same).
Step 4: That’s all.
It will ask you to reset the Chrome Browser, so do it. I tried this personally and succeeded in removing Adware like TremendousCoupon from computer.
I tried this way more than once and every time I had successfully removed the malware. But the actual problem is that Google Chrome and Mozilla Firefox both have bug that this malware is going to affect anyways.
If you have any problem regarding this problem then feel free to ask in the comment section. We will be happy to help you.
Enjoy and Stay Techie…