strings to improve performance and save memory (read the complete release notes for version 33).
Last week, Mozilla updated Firefox to version 33.1 with two privacy improvements. Firefox now offers DuckDuckGo as a search option (to learn more, see “Search in Private with DuckDuckGo,” 20 August 2014) and gains a new Forget button that enables you to wipe out your recent browsing history. You can choose to clear history and cookies from the previous 5 minutes, 2 hours, or 24 hours. Firefox 33.1 also brings Enhanced Tiles (which appear on new blank pages) that replace the default screenshots of a Web page with an image or logo supplied by a partner Web site. All partner content will be marked as “sponsored,” and data for the aggregate number of impressions, clicks, and Tile
placement is collected by Mozilla. To turn off this “enhancement,” open a blank tab, click the gear icon in the upper right corner, and choose Classic to deactivate click and impression tracking — for more details, see this Mozilla blog post. (Free, 64.3 MB, release notes, 10.6+)