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Mozilla Firefox VS Opera

Compare Mozilla Firefox VS Opera and see what are their differences

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Mozilla Firefox logo Mozilla Firefox

Get the browsers that put your privacy first — and always have

Opera logo Opera

Opera is a browser with innovative features, speed and security.
  • Mozilla Firefox Landing page
    Landing page //
    2023-09-01

Get the browser that protects what’s important. No shady privacy policies or back doors for advertisers. Just a lightning fast browser that doesn’t sell you out.

  • Opera Landing page
    Landing page //
    2023-08-20

Mozilla Firefox videos

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Mozilla Firefox Review

More videos:

  • Review - Firefox Quantum: Chrome Killer? Should You Switch Browsers?
  • Review - Six Reasons I Love Firefox Quantum
  • Review - Firefox Quantum Review: Google Chrome killer?

Opera videos

+ Add

Opera VPN Review: Walkthrough, Speed Test (and 🚩#1 Weakness 🚩)

More videos:

  • Review - Opera Browser | Review
  • Review - Opera GX Browser - Is It Any Good?

Category Popularity

0-100% (relative to Mozilla Firefox and Opera)

Mozilla Firefox

Opera

Web Browsers
53 53%
Web Browsers
47% 47
Web Development Tools
57 57%
Web Development Tools
43% 43
Web Tools
58 58%
Web Tools
42% 42
Productivity
100 100%
Productivity
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Mozilla Firefox and Opera

Mozilla Firefox Reviews

  1. Best Online Experience

    I adore Firefox's functionality and the fact that it is open source software that might be created by tens of thousands of people worldwide. You can utilize features that aren't accessible on rival products like Chrome because it is open source.

    👍 Pros:    Open-source|Free|Fast
The 11 Best Web Browsers Not Based on Chromium
Mozilla Firefox stands out as an open-source browser that prioritizes privacy and customization. As a top choice among browsers not based on Chromium, it has gained a loyal following thanks to its strong focus on user control and security.
Source: stackdiary.com
Avoid The Hack: 6 Best Privacy Browser Picks for Windows
Many tweaks, both basic, and advanced, should be made before Firefox can be considered a private browser. While vanilla - or otherwise un-configured - Firefox is arguably better for privacy than Google Chrome or Microsoft Edge, Firefox doesn't come especially configured for optimal (or maximum) user privacy out-the-box. This isn't a difficult task and just takes a chunk of...
Source: avoidthehack.com
Top browsers: features, comparison and stats (2022)
Mozilla Firefox is the fourth most popular web browser; it currently holds 4.1% of the web browser market share. It was released in 2002 by the Mozilla Foundation and its contributors.
Source: www.stackscale.com
6 Best Browser Alternatives to Google Chrome
You can also expect good performance from Firefox, though you might run into a rare compatibility issue. In general, Firefox is speedy (though not as lean as Edge) and its customizable UI should suit most users. While not the most feature-filled, Firefox has some nice additions not available on Chrome, including containers that let you separate work, shopping, or personal...
Source: gizmodo.com
The best web browsers for 2022
Firefox comes in a close second — a very close second. The Mozilla Firefox browser takes real strides to make its browser a truly modern way to surf from site to site, thanks to efforts like its upgrade to Firefox Quantum, its VR alternative Firefox Reality, and password-free browsing.
Source: www.digitaltrends.com

Opera Reviews

Top browsers: features, comparison and stats (2022)
Opera is the fifth most popular web browser; it currently holds 2.4% of the web browser market share. It was released in 1995 by Opera. So, it is one of the oldest web browsers which is still actively developed. The Opera web browser is based on Chromium, Google’s free and open source software project.
Source: www.stackscale.com
6 Best Browser Alternatives to Google Chrome
Because it is built on Chromium, Opera supports Chrome extensions, so the transition away from Google should be a smooth one. I particularly love Opera’s battery saver feature, which promises to improve battery life by up to 35%. When it comes to the user experience, Opera is a pretty straightforward browser with a clean user interface featuring a handy sidebar and some...
Source: gizmodo.com
The best web browsers for 2022
Opera also features a built-in “Stash” for saving pages to read later. There’s no need to sign up for a Pocket or Evernote account to save a page for later reading. Similarly, Opera features a speed-dial menu that puts all your most frequently visited pages in one place. Google Chrome also does this, but only on a blank new tab. Finally, Opera has a built-in unlimited VPN...
Source: www.digitaltrends.com
8 BEST Ad Blockers For Chrome In 2020 [Free Pop Up Blockers]
AdBlocker Ultimate offers both free and paid products. Their free products include an open-source browser extension that is compatible with Chrome, Mozilla, Opera, Safari, and Edge. They also have a free browser for Android called AdBlocker Ultimate Browser and a mobile app for Safari on iOS.
Source: www.softwaretestinghelp.com
14 Best Ad Blockers in 2020
Opera Browser — A basic ad blocker that’s built into the Opera browser, but doesn’t remove all ads.
Source: www.wizcase.com

Social recommendations and mentions

Based on our record, Opera seems to be more popular. It has been mentiond 23 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Mozilla Firefox mentions (0)

We have not tracked any mentions of Mozilla Firefox yet. Tracking of Mozilla Firefox recommendations started around Mar 2021.

Opera mentions (23)

  • Can anyone tell what is this?
    This is not opera.com it's "api2 dot com" so it's a malware site posing as an opera one by including opera in its name. I had a popup like this. It opened every time I opened the browser. Turned out it was coming from a video downloader extension. Source: 10 months ago
  • Is there a way to download the official browser through a torrent or a mirror link?
    The opera.com domain is banned where I live but I still want to download the browser without a VPN (because those are also banned). Is there a torrent link or an alternative/mirror link where I can download the latest Opera One release? Thanks! Source: 10 months ago
  • Opera Adblocker pinging opera.com?
    Apparently it "urgently needed to be removed off the network" (bullshit, you could've blocked opera.com, dumbass) I don't see why its so bad to have one kid with an unmanaged browser, like seeing "your browser is managed by your organisation" sucks enough. They disabled basically everything good about Chrome, for a time, they locked down the performance tab so we couldn't even use battery saver. Source: 11 months ago
  • Opera Adblocker pinging opera.com?
    One day, I got called to my Deputy Principal's (Dep. For short) office because my laptop was doing wacky shit to the network. He informs me that my laptop had sent 64k pings to opera.com. It was about the 2nd term, we receive new laptops every couple of years. He first told me about my searches for a VPN, which I guess is on me. But when he brings up the 64k pings, he tells me whatever the app is doing it has to... Source: 11 months ago
  • How big is the chance of getting malware while downloading roms?
    I use uBlock Origin on Chrome but it is available for Opera GX as well. You install it by finding uBlock Origin in addons section of opera.com and then clicking the "Add to Opera" button. Source: 12 months ago
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What are some alternatives?

When comparing Mozilla Firefox and Opera, you can also consider the following products

Brave - Fast and secure, ad and tracker blocking browser.

Google Chrome - Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.

Vivaldi - Vivaldi is a free, fast web browser designed for power-users. You decide how you browse. Download Vivaldi's fully customisable browser now and browse your way.

Tor Browser - Tor is free software for enabling anonymous communication.

Pale Moon - Pale Moon is an Open Source, Mozilla-derived web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use.

Safari - Safari is faster and more energy efficient than other browsers. Now you can shop even more safely and simply in Safari on your Mac.

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