Deleting your Internet history from time to time is a vital and fundamental digital security measure. It does not hurt if you venture onto a page and you do not like other people to know about it. Before your wife catches you on Google search for nude pictures of the latest celebrity, consider putting these instructions into practice to erase your Internet history on a Mac computer. Safari 1. Open Safari if it is not open yet. 2. Click the Safari menu. 3. Click the Reset option. 4. Choose what you want to delete. There will be a long list of items that you can delete. Choose the ones you want to delete. Either it's just the history or either items such as cookies and cache. 5. Click Reset. There is no way to easily retrieve all the deleted information. Google Chrome 1. Open Google Crome if it is not open yet. 2. Click the menu button next to the address bar. This appears as three lines. 3. Click History. 4. Click Clear Navigation Data . 5. Select the items to delete and the desired time period. There will be a long list of items that you can delete. Choose the ones you want to delete. Either it's just the history or either items such as cookies and cache. 6. Click Clear Navigation Data. There is no way to easily retrieve deleted information. Firefox 1. Open Firefox if it is not open yet. 2. Click the History menu at the top. 3. Select View All History . 4. Choose the time period you want to delete. 5. Select and click Delete on your keyboard. 6. Or, you can select the folder of the time period whose elements are to be deleted. Just right click and select Delete. 7. Close the browser. After you delete the items, you are done and the items are deleted.