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Mozilla Firefox vs. Opera
Head-to-head on 1 list they both appear on: Mozilla Firefox ranks higher on 1, Opera on 0.
| Mozilla Firefox | Opera | |
|---|---|---|
| Koko Score | — | — |
| Votes | 0 (0 up) | 0 (0 up) |
Shared lists
| List | Mozilla Firefox | Opera |
|---|---|---|
| Top 6 Web Browsers of All Time | #2 | #5 |