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Browser Extensions · head to head

FireMonkey vs Fireshot

FireMonkey logo

FireMonkey

Browser Extensions

User scripts and user styles in one Firefox extension

From
Free
Rated
-
Full reviewWebsite
Fireshot logo

Fireshot

Browser Extensions

Full webpage screenshots

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: FireMonkey firefox only, and requires a recent one: version 93 on desktop, 113 on Android.; Fireshot pro yearly license is capped at 2 devices for personal use; additional devices require a separate license purchase
  • They diverge on capability: FireMonkey covers Scripts and styles together, Fireshot covers Full page capture.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which FireMonkey and Fireshot actually diverge.

Attributes where FireMonkey and Fireshot differ
AttributeFireMonkeyFireshot
Pricing modelopen-sourcefreemium
PlatformsFirefoxChrome, Firefox, Edge, Opera
FoundedUnknown2007

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

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 FireMonkey

  • Scripts and styles together
  • Monaco editor with ESLint
  • Unlimited client-side storage
  • Global injection
  • Notifications and clipboard
  • Firefox for Android

Only in Fireshot

  • Full page capture
  • Multiple formats
  • Annotation
  • Direct upload
  • Chrome support
  • Firefox support
  • Edge support
  • Opera support

What people use each for

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

FireMonkey

  • Running user scripts and user styles without two separate extensionsnot Fireshot
  • Restyling sites with CSS alongside scripted behaviour changesnot Fireshot
  • Editing scripts in a full editor inside the browsernot Fireshot
  • Injecting CSS globally across every sitenot Fireshot
  • Managing a mixed library of scripts and styles from one dashboardnot Fireshot

Fireshot

  • Capturing and annotating full-page screenshots of web pagesnot FireMonkey

Where each one falls short

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

FireMonkey

  • Firefox only, and requires a recent one: version 93 on desktop, 113 on Android.
  • Not a drop-in replacement for Greasemonkey, Tampermonkey or Stylus. The project says so itself, so an existing library may need adjusting.
  • A much smaller user base than Tampermonkey or Violentmonkey, which means fewer people have hit the bug you are about to hit.
  • No Chrome, Edge or Safari build, so it cannot be the answer for anyone working across browsers.
  • Combining scripts and styles in one extension also combines the blast radius: one extension with permission to inject both into every page.

Fireshot

  • Pro yearly license is capped at 2 devices for personal use; additional devices require a separate license purchase

Pricing, plan by plan

FireMonkey

Free
  • Open sourceFree
    • MPL-2.0 licensed
    • Unlimited scripts and styles
    • No account required

Fireshot

Free
  • FreeFree
    • Full page capture
    • PNG/JPEG export
    • Basic annotation

Which should you pick?

Choose FireMonkey if

  • You need scripts and styles together.
  • You want to start without paying.
  • You work on Firefox.
  • You also want monaco editor with eslint.
FireMonkey review

Choose Fireshot if

  • You need full page capture.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want multiple formats.
Fireshot review

Questions people ask

Is FireMonkey or Fireshot better?
Neither clearly leads. FireMonkey starts at Free and Fireshot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FireMonkey or Fireshot?
FireMonkey starts at Free and Fireshot at Free.
Does FireMonkey or Fireshot run on more platforms?
FireMonkey runs on Firefox. Fireshot runs on Chrome, Firefox, Edge, Opera.
Can I use FireMonkey for free?
Both have a free tier, so you can try either at no cost before committing.
What is FireMonkey best used for?
FireMonkey is most often used for running user scripts and user styles without two separate extensions, restyling sites with css alongside scripted behaviour changes, editing scripts in a full editor inside the browser, injecting css globally across every site. Of those, running user scripts and user styles without two separate extensions and restyling sites with css alongside scripted behaviour changes are not what Fireshot is typically brought in for.
What can FireMonkey do that Fireshot cannot?
FireMonkey covers Scripts and styles together, Monaco editor with ESLint, Unlimited client-side storage, Global injection. Fireshot covers Full page capture, Multiple formats, Annotation, Direct upload.

Answered from the vendors’ own pages

FireMonkey: What makes FireMonkey different from Violentmonkey?

It manages user styles as well as user scripts. The usual arrangement is a script manager plus a separate style manager such as Stylus; FireMonkey replaces both with one extension.

Source
FireMonkey: Which browsers does FireMonkey support?

Firefox only. Desktop requires Firefox 93 or later and Android requires 113, with an API minimum of 102.

Source
FireMonkey: Is FireMonkey open source?

Yes, under the MPL-2.0 licence.

Source
FireMonkey: Will my existing Tampermonkey scripts work?

Not necessarily. The project states that while it shares functionality with Greasemonkey, Tampermonkey and Stylus, there are differences, so scripts and styles written for those may need adjusting.

Source
FireMonkey: What editor does FireMonkey use?

Current versions use the Monaco editor with ESLint, the same editor component that powers VS Code.

Source
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