When comparing CM Browser vs Lightning, the Slant community recommends Lightning for most people. In the question“What are the best Android web browsers?” Lightning is ranked 17th while CM Browser is ranked 35th. The most important reason people chose Lightning is:
This means you can help developing new features if you would like to contribute. Moreover you can inspect the code if you are concerned about privacy.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fast
The browser attempts to preload pages you're about to visit, so when you click on the link to switch to a different page, it's already loaded and ready for you to use.
Pro Built-in popup blocker
The browser prevents sites from distracting you with pop-ups.
Pro Good looking UI
Pro Free and open source software
This means you can help developing new features if you would like to contribute.
Moreover you can inspect the code if you are concerned about privacy.

Pro Built-in reading mode
Reading mode allows removing everything on a page but the content. It removes ads, styling and anything else that could get in the way of a comfortable reading experience.

Pro Slide-out tab switcher
Tab switcher can be quickly accessed by swiping from the left.

Pro Incognito mode
Cons
Con Fullscreen will auto landscape
Will be troublesome if you want to view it portrait
Con Night mode has issues
as example it cause instagram image and story content gone
Con No bookmark folders
Bookmarks can't be organized into folders.
