You go Magento Admin Section.
1. Then click System.
2. Go to Configuration
3. Click “Advanced Tab”
4. There Which Module You need to Hide
5. You can do it there. Now we can Changed the Mage_Newsletter “Enable” to “Disable”.
1. Enter your Magento admin panel
2. Then go to “System”
3. Select “Cache Management”
4. Disable cache for “Translations”
5. Then go to the “System > Configuration > Developer” page
6. Expand the “Translate Inline” tab and enable it
7. Save the changes
Now you can see that some text blocks are in red boxes so that you can edit them. You can change text in the admin panel and at the front end.
NOTE: the change won’t affect .csv files; it’ll be saved in your database.