Opera was the first browser with any significant market share that supported tabs. I vividly remember switching to Opera somewhere in the 2000s for that very re

Opera was the first browser with any significant market share that supported tabs. I vividly remember switching to Opera somewhere in the 2000s for that very reason. It also had working bookmark syncing way earlier than the others - that was the second reason for me to use Opera in the 2000-2010 timeframe. I eventually switched to Chrome when it got too good to ignore, and lately to Firefox when it got good enough to compete head-to-head with Chrome.