Opera vs. Firefox

Phishing is a form of hacking aimed at collecting your browser data using malware when you access a website. Opera Browser’s <>Sitecheck solution warns you when a website contains malware. Firefox offers a similar solution.

In both Firefox and Opera Browser, you can choose to autofill addresses, payment data, or passwords. Your data is securely stored in the browser, available only to you, and you can opt-out at any time.

Both Opera and Firefox browsers enable protection against tracking scripts and third party tracking cookies. This ensures that when you connect to any new site, your browser will send a "do not track" request so that your steps on the web are not tracked.

Opera Browser and Firefox both protect you from crypto mining scripts. With this feature your device is protected from having its resources used for cryptocurrency mining without your consent. Along with safeguarding your device against intrusion, this feature saves your devices processing power, battery-life and speed.

Fingerprinting is data-collection used to bypass your privacy and identify you, or your device. The method of data-collection is not specific, so protecting yourself against fingerprinting necessitates security in multiple areas - tracking protection, using a VPN, blocking ads, and caution about what data you make available online.

While Firefox gives you partial protection against browser fingerprinting, the Electronic Frontier Foundation’s Cover Your Tracks site shows that the Firefox browser still has a unique fingerprint online.

A VPN is one of the most important privacy features. Opera Browser comes with a free VPN service for Opera users, providing security and privacy when activated. Firefox has an VPN extension that can be downloaded, but it has limited hours of use per month.

While all security features are important, nothing offers as much protection as a VPN from a trusted provider that offers the use of multiple servers spread across many countries. Both Opera and Firefox web browsers offer a paid VPN service to their users, though Opera VPN Pro lets you protect more devices and access many more VPN servers worldwide. In addition, Opera VPN Pro costs significantly less than Mozilla VPN, with further savings for longer subscriptions.

Most people switch between devices regularly, making data-synchronization (bookmarks, browsing history, tabs) an absolute must-have for efficient work. Both Opera and Firefox web browsers offer this functionality. You can log into your Opera account on your other computer's Opera browser, or mobile versions on another device, and your browser data will be securely synced between them.

Watch a video in the background while working in another tab. Opera’s Video Pop-out feature and Firefox’s picture-in-picture functionality enable this. The minimized and detached video stays on top as you move to a new tab page, and you can scale it or move it so that it doesn't obscure what you’re doing

Have a lot of tabs open at once? Not a problem! Opera and Firefox both offer searching in tabs for even more efficient information retrieval whenever you need it. Instead of clicking through all your open tabs, you can search by keyword to find the tab you want.

On top of this, Opera takes tab management a step further with a duplicate tab highlighter for easy reference, and the ability to close all the duplicates with one click.

Flow is Opera's custom feature that allows you to securely send attachments (notes, files, images, links) between devices, including your mobile phone. All you have to do is scan the QR code to connect your desktop browser to your mobile version. Anything you send between devices with the Flow feature is encrypted for privacy and security, and is immediately available in your other device’s Opera Browser. Mozilla Firefox used to have a similar feature, but it was discontinued in 2020.

Unlike Mozilla Firefox, Opera has currency, measurement, and time-zone converters built right into the browser. Just highlight a currency, time or unit of measurement on any webpage. The unfamiliar numbers will be converted automatically and displayed in a small popup.

When browsing on a laptop with no way to plug it in, saving battery life is a great advantage - especially when you need your device for work. Opera Browser’s Battery Saver feature extends your battery life by up to 35% without sacrificing performance. Firefox does not have such a feature.

Choose the default search engine for your address bar that suits you best, and switch between search engines as needed. It’s a simple but crucial feature that allows you to customize how you experience the web. Available both in Opera and Firefox browsers.

Make your browser truly personal. Both Firefox and Opera provide endless options for making your browser your own, like themes, wallpapers, and start page speed dial options that give you a clean interface. Additionally, Opera's interface has a customizable sidebar that gives you immediate access to Workspaces, messaging apps, a music player, and other essential features.

Opera's secure web browser is paving the way for Web3 standards. A unique feature that no other browser has yet, the integrated Opera Wallet lets you securely access and store your cryptocurrencies, tokens, and collectibles.

Facebook Messenger, WhatsApp, Telegram - Opera has integrated the most popular messengers into its sidebar for easy access in your browser. This allows you to chat with your friends directly from the browser window - you don't have to drop what you're doing at the moment, just select the appropriate icon from the sidebar. Mozilla Firefox does not include this feature.

Instagram, Twitter, TikTok? Use your favorite social media without switching apps or windows. In a convenient slide-out panel in Opera Browser’s sidebar, you can scroll through your favorite photos and videos without closing the tab you're currently working on or juggling different apps.