Software · head to head
Microsoft Outlook vs Mozilla Firefox
Microsoft Outlook
Software
Email, calendars and contacts in one place, on desktop, mobile and web
- From
- On request
- Rated
- -
The short version
- Only Mozilla Firefox has a free tier, so it costs nothing to try first.
- Each has a real cost: Microsoft Outlook free Outlook.com accounts are capped at 15GB mailbox storage plus 5GB cloud storage; Mozilla Firefox no longer supported on Windows 8.1 and earlier versions (users must use Firefox ESR)
Where they differ
Only the attributes on which Microsoft Outlook and Mozilla Firefox actually diverge.
| Attribute | Microsoft Outlook | Mozilla Firefox |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | subscription | Unknown |
| Free tier | No | Yes |
| Platforms | Web | Windows, macOS, Linux, iOS, Android |
| Founded | Unknown | 2004 |
Identical on both: user rating (Not yet rated), category (Unknown).
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 Microsoft Outlook
Nothing recorded that Mozilla Firefox does not also cover.
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
What people use each for
The jobs each tool is most often brought in to do.
Microsoft Outlook
No use cases recorded yet. See the Microsoft Outlook review.
Mozilla Firefox
- Open-source web browser with privacy-focused designnot Microsoft Outlook
- Automatic tracking protection and ad blocking (2000+ data trackers blocked by default)not Microsoft Outlook
- Private browsing mode for anonymous web sessionsnot Microsoft Outlook
- Built-in password managernot Microsoft Outlook
- Multi-platform synchronisation across devicesnot Microsoft Outlook
- Developer tools and debugging capabilities for web developmentnot Microsoft Outlook
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Microsoft Outlook
- Free Outlook.com accounts are capped at 15GB mailbox storage plus 5GB cloud storage
- Ad-free inbox and advanced security features require at least the $1.99/month Microsoft 365 Basic tier
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)
Pricing, plan by plan
Microsoft Outlook
On requestNo published plan breakdown. See the Microsoft Outlook review.
Mozilla Firefox
FreeNo published plan breakdown. See the Mozilla Firefox review.
Which should you pick?
Choose Microsoft Outlook if
Nothing in the data separates Microsoft Outlook from Mozilla Firefox on the points above - pick on price and on how each one feels to use.
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.
Questions people ask
- Is Microsoft Outlook or Mozilla Firefox better?
- Neither clearly leads. Microsoft Outlook starts at On request and Mozilla Firefox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft Outlook or Mozilla Firefox?
- Mozilla Firefox has a free tier; the other does not. Paid plans start at On request for Microsoft Outlook and Free for Mozilla Firefox.
- Does Microsoft Outlook or Mozilla Firefox run on more platforms?
- Microsoft Outlook runs on Web. Mozilla Firefox runs on Windows, macOS, Linux, iOS, Android.
- Can I use Mozilla Firefox for free?
- Yes. Mozilla Firefox has a free tier, so you can try it without paying. Microsoft Outlook starts at On request.
- What can Microsoft Outlook do that Mozilla Firefox cannot?
- Mozilla Firefox covers Enhanced tracking protection, Private browsing, Customizable interface, Add-ons support.