Mozilla Firefox, I am used to be fan of Mozilla Firefox because of its tab management and the high performance on low end computers, but later I have shifted to another browser as the Firefox sucks with new updates and got more heavier on my less RAMed computer.
Several crashes, easily affected by Trojans, viruses, and less security of data and privacy is now common on Firefox. Only downloading option is works well if you want to download some video or large file. But better download managers are available, so why Firefox?