Numbers supplied by Opera show that the browser’s new Power Saving Mode, currently found only in developer builds, can considerably extend laptop battery life.
The folks behind the free but proprietary Opera browser announced today that the latest developer build includes Power Saving Mode, a new feature that the company claims can extend battery life by up to 50 percent. If true, this could be a serious game changer. Free and open source software advocates should hope that the developers at Mozilla are paying attention.



“When building features for hundreds of millions of Firefox users worldwide, it’s important to get them right,” he wrote. “To help figure out which features should ship and how they should work, we created the new Test Pilot program.”








