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Opera Browser vs. Mozilla Firefox: Which is Better Choice?

The Mozilla Firefox and Opera browser are both privacy-centric browsers. But when it comes to Opera vs. Firefox, Opera offers many rich features like VPN service, social connectivity panel, anonymous registration for sync, etc. It is unique to the opera browser and preferred over Firefox.

There are quite a few notable names that could pop up in your mind regarding the browser domain. The likes of Google Chrome, Microsoft Edge, Apple Safari, and many other Chromium-based browsers are all enjoying decent market share.

Along the same lines, Opera browser and Mozilla Firefox have also carved out a niche segment of a loyal fanbase. Being the earliest entries in the browser segment, they have usually been a trustworthy name to fall upon. While Opera could pride upon its plethora of customization, Mozilla is well known for its privacy-centric approach.

However, this is just one of the very differentiating factors between these two powerhouses. With a plentitude of unique features and some nifty built-in functionalities, users are generally engrossed in the clouds of confusion as to which one they should settle for.

And if this question was bugging you as well, then this comparison tutorial between Opera and Firefox browser will settle this debate for good. Here we will be weighing in all the essential features that both these browsers behold and will then make you aware of which one outweighs the other and why.

So without further ado, let’s get started —

Block Trackers

When you are surfing the world wide web, the trackers always keep an eye on your online browsing activity. While the benefit for the same is documented to help the browser send curated content to the user, there’s much more to that since they possess a significant security risk.

Firefox Enhanced Tracking Protection

In this regard, Opera seems to have quite a decent job. They have blocked all the third-party tracking cookies by default so that you have one less thing to worry about. Not only that, but they have also incorporated tracker-blockers that are known to block all the crypto-mining scripts, which is something that not many other browsers could claim off.

However, Mozilla has taken this even a step ahead. Rather than directly blocking all the trackers, it has segregated its tracker blocking mechanism into three different segments: Standard, Strict, and Custom. Apart from that, it also blocks all the social media trackers, which has become the need of the hour.

So while both the browsers seem to have given attention towards the tracker blocking, Firefox takes the upper hand, mainly because it gives users more granular controls over this functionality.

Ad Blockers

The sites that tend to adopt the practice of sending intrusive and disruptive ads are always on the rise. All this tends to disrupt the standard workflow of the users apart from breaking down the UX/UI element. This is where the need for an ad-blocker arises.

Opera Privacy Protection icon

Keeping a note of the same, Opera comes equipped with a built-in ad blocker. And it performs decently well. Not only is it able to stop all the different ad layouts, but it also has provided you with an option to create your own rules. For example, you may add your preferred sites to the whitelist, and hence that the latter could still display ads and earn their fair share of revenues.

However, when it comes to Mozilla’s offering, there’s no such thing as an ad-blocker. So there are two different approaches that you could opt for. These include installing a third-party extension or going for the Strict level of tracking block, blocking most intrusive ads.

Having a native ad blocker is always a good option rather than being dependent on an add-on or going for an indirect approach of blocking trackers for stopping the ads. So Opera manages to outdo Firefox in this domain.

VPN Support

VPN provides a safe and encrypted passage for the transfer of data from the source to the destination. Apart from that, it also allows you to access the geo-restricted contents with ease.

In this regard, Opera has again taken a similar route and has built in a VPN tool. With just a single click, you could enable it and browse via the location of your choice. Likewise, it also displays some additional information sets such as the total data exchanged and its date and time. You could even use this VPN in the Private Browsing mode.

Opera Private VPN for Free

If we turn our attention towards Firefox, then there’s no built-in Virtual Private Network. As a result, you would again have to be on the lookout for a decent VPN app or software.

While Opera’s VPN is still far from a finished product, its presence in its ecosystem by default makes the job easier for the end-user. As a result, it takes the upper hand over Firefox in the battle of VPNs!

Cross-Device Support

Having cross-device support has now become a necessity rather than a luxury. Syncing all your data and allowing you to access your contents from all the linked devices streamlines all our workflow data.

Opera Social Media button sidebar

Once you sign in with your Opera account, your bookmarks, history passwords, and saved data are easily accessible across all the linked devices. Then its My Flow features prove to be the icing on the cake. Without even logging into your account, you could easily share different file types, including images, videos, links, notes, among others.

Firefox also allows you to sync the browser data across different devices. Just sign in via your account, and then you would be able to access bookmarks, settings, data, and opened tabs between all these devices.

While both the browsers come with a decent cross-device support system, Opera’s My Flow feature manages to edge out its competitor with ease.

Utility Tools

Nowadays, every browser comes preloaded with some handy utility tools. They help the end-users, but they also help the bowser create their unique identity.

Opera Battery Saver Feature

In this regard, Opera has baked in quite a lot of add-ons. To begin with, you could easily take screenshots on the go, use Spell Checking to check for spelling and grammatical mistakes, enable Reader Mode for a distraction-free environment, or even give a shot at its Unit Converters. Likewise, it also comes with a built-in CryptoCurrency Wallet.

Spell Check, Reader Mode, and Screenshot Editor are present in the Mozilla Firefox browser as well.  Furthermore, it has also added a Bookmark Manager to handle all your bookmarks across the synced devices effectively. Moreover, using its Picture in Picture Mode, you could watch your preferred videos in a small overlay window that could be resized and dragged to any corner of your screen.

As compared to Firefox, Opera doesn’t have a Text to Speech and the AutoPlay Blocking feature. On the flip side, Firefox misses out on Battery Saver and Workspaces that Opera could brag about. All in all, handling out a winner’s medal in this section ultimately boils down to individual preferences.


Many users prefer to change the look and feel of the stock browsing experience. From tweaking the user interface to making modifications to individual browser components, there’s a lot to try out.

Customize the Firefox Browser on Computer

Opera has always been known to be among the most customizable browsers, and there are quite a few reasons to justify this claim. Right from changing the themes to switching over different wallpaper or even accessing your social media and instant messaging handles, all this is just a click away. Likewise, you could also customize the news-reader with the topic of your interest.

Firefox also displays news feeds and articles directly from Pockets. Likewise, it gives you the option to tweak the Title bar, Menu bar, and the Bookmarks toolbar. Apart from that, you could also download additional themes from the store.

Again, it’s hard to tag a clear-cut winner in this domain. While Opera gives you the option to customize the entire interface, Firefox majorly focuses on tweaking individual browser components.


Extensions are third-party add-ons that tend to add more features to the browser. While some focus on utility, others promise a much safer browsing experience, and some are a boon for the official workspaces.

Firefox Add-ons Homepage

Opera boasts of a plentitude of extensions spread across varied domains. From Adblockers to password managers to social media and tabs management, there’s a lot to look forward to. While the UI of its extension store looks a tad outdated, that shouldn’t be a cause of any significant issues as its categories and filer tabs will make it relatively easy to search for the extension of your choice.

Since Firefox doesn’t come with a built-in adblocker or VPN, the need for extension becomes more important. And its user-friendly extension store wouldn’t leave you disappointed. It also has a decent collection of third-party add-ons up its arsenal that is enough to checkmark the requirements for the end-user more often than not.

Since Opera is a Chromium browser, you could easily try out all the Chrome extensions as well. Hence it automatically translates to a richer collection compared to Firefox, which still has some catching up left to do.

Speed and Performance

While this isn’t a quantifiable term that we could explain in plain numbers, speed is among the most critical factors in which a user generally rests their overall decision.

We decided to keep this determinant at the end because, by this point, you would have got a pretty decent idea regarding the plethora of features that Opera beholds. And this ultimately leads to its downfall. Since most of its functionalities are directly baked into the browser, its associated processes tend to make the browser a tad slower in everyday usage.

On the other hand, though not bereft of features either, Firefox has effectively managed to endure the high and extensive resource usages. And the fact that it lacks a native ad blocker and VPN seems to be a blessing in disguise for them, at least in this segment.

So the fact that Opera is based on the clunky Chromium with many built-in options tends to make it a bit slower than Firefox, which impressively manages the browser’s resource consumption.

Bottom Line: Firefox vs. Opera Browser

With this, we come to the end of this extensive and detailed comparison test between two of the most well-known players in the browser industry.

While Opera manages to outdo its competitor with customizations and features, Mozilla comes out on top in the Privacy and Speed segment.

Apart from that, both these browsers behold some nifty and useful features that make it a standout player from the rest. Whereas Firefox gives you the option to determine how stringent privacy you prefer, Opera could call its My Flow and Crypto-Currency features as its USP.

So this was all from us. What are your opinions on the same? Do let us know in the comments section which one is your preferred choice from the two.

Frequently Asked Questions

These are few frequently asked question about Mozilla Firefox vs. Opera browser on internet.

Does Opera use less RAM than Firefox?

Opera is highly secured browser with low memory and RAM consumption compared to Firefox or Google Chrome browser.

Which is better: Opera vs. Firefox for Security?

Both Opera and Firefox fundamentally developed keeping privacy in mind. However, when it comes to features supporting the security. The Opera has feature like built-in VPN service, anonymous sync, etc. which is enables better security without compromising the personal data.

Is Firefox better than Opera?

Firefox is developer friendly + privacy browser, whereas Opera is mostly the privacy browser with better usability and rich feature. Keeping this in mind, both are better in their own fields.

Lastly, here are the recommended web browsers for computer and mobile phone that you should give a try.

Chrome WindowsChrome MacChrome iOSChrome AndroidFirefox Linux
Firefox WindowsSafari MacSafari iOSEdge AndroidChrome Linux
Edge WindowsFirefox MacEdge iOSSamsung InternetEdge Linux

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