I don't need offline browsing capability of Ad Annihilator. Can I turn it off?

Yes, you can do it by switching Ad Annihilator into simple mode in this way:

• Click Ad Annihilator Options button on Ad Annihilator toolbar. Ad Annihilator Options window is opened afterwards;

• Select Program mode tab;

• Click "Switch to simple mode" button. If you see only "Switch to Advanced Mode" button there, Ad Annihilator already works in simple mode so skip this step;

• Click OK button.

Note that there are certain limitations in functionality in simple mode. See Program mode tab to learn about Ad Annihilator modes.