The { -brand-name-firefox-browser } and { -brand-name-opera } are two of the earliest browsers on the scene still releasing frequent updates. While { -brand-name-opera } has not reached the same level of user adoption as { -brand-name-firefox } or { -brand-name-google } { -brand-name-chrome }, it’s maintained a relatively stable and loyal base over a sustained period of time. In this review, we’ll compare the { -brand-name-opera } browser with our { -brand-name-firefox } browser in terms of security and privacy, utility, and portability to help you choose which browser might be the best fit for you.

{ -brand-name-firefox-browser }與 { -brand-name-opera } 是目前市面上頻繁推出更新的瀏覽器當中，最早出現的兩套。儘管 { -brand-name-opera } 的使用者採用率還沒有到達 { -brand-name-firefox } 或 { -brand-name-google } { -brand-name-chrome } 的等級，但在長時間以來仍維持有一群穩定與忠誠的使用者。我們將在這份報告當中比較 { -brand-name-opera } 與自家 { -brand-name-firefox } 瀏覽器，在隱私權保護、實用性、可攜性等方面的差異，幫助您選擇最適合的瀏覽器。