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Technology · head to head

Mozilla Firefox vs Proton Mail

Mozilla Firefox logo

Mozilla Firefox

Technology

Fast, private & safe web browser

From
Free
Rated
-
Full reviewWebsite
Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Mozilla Firefox no longer supported on Windows 8.1 and earlier versions (users must use Firefox ESR); Proton Mail paid plan pricing not displayed on vendor site

Where they differ

Only the attributes on which Mozilla Firefox and Proton Mail actually diverge.

Attributes where Mozilla Firefox and Proton Mail differ
AttributeMozilla FirefoxProton Mail
Pricing modelUnknownfreemium
PlatformsWindows, macOS, Linux, iOS, AndroidWeb
CategoryTechnologyCybersecurity
Founded2004Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Mozilla Firefox

  • Enhanced tracking protection
  • Private browsing
  • Customizable interface
  • Add-ons support
  • Cross-device sync
  • Built-in screenshot tool
  • Reader mode
  • Picture-in-picture

Only in Proton Mail

Nothing recorded that Mozilla Firefox does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Mozilla Firefox

  • Open-source web browser with privacy-focused designnot Proton Mail
  • Automatic tracking protection and ad blocking (2000+ data trackers blocked by default)not Proton Mail
  • Private browsing mode for anonymous web sessionsnot Proton Mail
  • Built-in password managernot Proton Mail
  • Multi-platform synchronisation across devicesnot Proton Mail
  • Developer tools and debugging capabilities for web developmentnot Proton Mail

Proton Mail

  • Encrypted email communicationnot Mozilla Firefox
  • Privacy-focused email servicenot Mozilla Firefox
  • Family email protectionnot Mozilla Firefox

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mozilla Firefox

  • No longer supported on Windows 8.1 and earlier versions (users must use Firefox ESR)
  • No longer supported on macOS 10.14 and earlier versions (users must use Firefox ESR)

Proton Mail

  • Paid plan pricing not displayed on vendor site
  • Free tier limited to 1 GB storage
  • Free tier limited to single email address

Pricing, plan by plan

Mozilla Firefox

Free

No published plan breakdown. See the Mozilla Firefox review.

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

Which should you pick?

Choose Mozilla Firefox if

  • You need enhanced tracking protection.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, iOS, Android.
  • You also want private browsing.
Mozilla Firefox review

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Questions people ask

Is Mozilla Firefox or Proton Mail better?
Neither clearly leads. Mozilla Firefox starts at Free and Proton Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mozilla Firefox or Proton Mail?
Mozilla Firefox starts at Free and Proton Mail at Free.
Does Mozilla Firefox or Proton Mail run on more platforms?
Mozilla Firefox runs on Windows, macOS, Linux, iOS, Android. Proton Mail runs on Web.
Can I use Mozilla Firefox for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mozilla Firefox best used for?
Mozilla Firefox is most often used for open-source web browser with privacy-focused design, automatic tracking protection and ad blocking (2000+ data trackers blocked by default), private browsing mode for anonymous web sessions, built-in password manager. Of those, open-source web browser with privacy-focused design and automatic tracking protection and ad blocking (2000+ data trackers blocked by default) are not what Proton Mail is typically brought in for.
What can Mozilla Firefox do that Proton Mail cannot?
Mozilla Firefox covers Enhanced tracking protection, Private browsing, Customizable interface, Add-ons support.

Answered from the vendors’ own pages

Mozilla Firefox: How much does Firefox cost?

Firefox is free to download and use. No pricing tiers, subscriptions, or payment plans are offered for the standard browser.

Source
Proton Mail: Is there a free version of Proton Mail?

Yes, Proton Mail offers a free plan with 1 GB storage, 1 encrypted email address, and basic features like folders, labels, and filters.

Source
Proton Mail: What does the Mail Plus plan include?

Mail Plus includes 15 GB storage, 10 encrypted email addresses, support for 1 custom domain, 10 hide-my-email aliases, priority support, and access to Proton Calendar.

Source
Proton Mail: What is included in Proton Unlimited?

Proton Unlimited provides 500 GB storage, 15 email addresses, 3 custom domains, unlimited hide-my-email aliases, access to Mail, Calendar, VPN, Drive, and Pass, plus dedicated support.

Source
Proton Mail: Does Proton Mail offer a money-back guarantee?

Yes, Proton Mail provides a 30-day money-back guarantee for paid plans.

Source
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Related pages

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