With a view to increasing its revenue, Mozilla has started displaying advertisements starting with Firefox v33.1. The ads will appear in the form of Tiles in the new tabs page which used to show the history of the most visited sites by the user.
Mozilla’s major revenue comes from the Google, under the deal, where the Google search engine is installed as a default in the Firefox browser. With Firefox falling a distant 3rd in the browser market share with just 14% share, Mozilla does not have an upper hand going into the negotiation with Google to renew the deal that expires this November. Hence, the decision to start displaying ads is seen as an attempt from Firefox to decrease its dependence on Google, where it can start making revenue for itself.
Firefox does not allow tracking its user’s browsing history. It has clarified that running sponsored content in tiles is results-based and not surveillance-based. It will also not allow tracking beacons or code in Tiles.
Thus, while the ads are not intrusive as such, and help Mozilla earn some money to support its development. But if you wish you can easily disable them.
Remove Firefox Ad Tiles
To disable the ads in Firefox New tab page, open a new tab. Now in the top right corner, click on the Settings gear icon. Click on and select Classic, instead of the default Enhanced.
If this does not work for you, you may select Blank. This will give you a blank new tab page.
There is another way and that is by accessing about:config settings.
about:config is a feature of Mozilla Firefox web browser that gives access to advanced settings, hidden under the browser. These settings aren’t available in the browser’s standard options window.
Type about:config in Firefox address bat and hit Enter. Here, search for browser.newtabpage.enhanced preference and double-click on it to change its status to False.
This will display a blank New tab page.
You may have to clear your Firefox cache and restart your web browser.