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Browser Extensions · head to head

Greasemonkey vs Moodle

Greasemonkey logo

Greasemonkey

Browser Extensions

The original userscript manager, for Firefox

From
Free
Rated
-
Moodle logo

Moodle

LMS

Open-source LMS designed by educators for educators

From
Free
Rated
-

The short version

  • Each has a real cost: Greasemonkey firefox only. There is no Chrome, Edge or Safari build and there never has been.; Moodle self-hosted deployment requires significant IT resources and technical expertise
  • They diverge on capability: Greasemonkey covers Userscript execution, Moodle covers Course management.
  • Prices and features above were last checked on 17 September 2026.

Where they differ

Only the attributes on which Greasemonkey and Moodle actually diverge.

Attributes where Greasemonkey and Moodle differ
AttributeGreasemonkeyMoodle
Pricing modelopen-sourceUnknown
PlatformsFirefoxWeb
CategoryBrowser ExtensionsLMS
FoundedUnknown2002

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 Greasemonkey

  • Userscript execution
  • Built-in script editor
  • GM. API
  • @resource support
  • Script localisation
  • Firefox for Android

Only in Moodle

  • Course management
  • Quiz builder
  • Forums
  • Assignments
  • Gradebook
  • Badges
  • Competencies
  • Mobile app

What people use each for

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

Greasemonkey

  • Restyling or de-cluttering a site you use dailynot Moodle
  • Automating a repetitive action on a web applicationnot Moodle
  • Adding a missing feature to a site you do not controlnot Moodle
  • Running userscripts on Firefox for Androidnot Moodle
  • Writing and testing your own scripts in the browsernot Moodle

Moodle

  • Online learningnot Greasemonkey
  • Blended learningnot Greasemonkey
  • Corporate trainingnot Greasemonkey
  • Compliance trainingnot Greasemonkey

Where each one falls short

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

Greasemonkey

  • Firefox only. There is no Chrome, Edge or Safari build and there never has been.
  • Its API diverged from the Tampermonkey conventions most shared scripts are written against, so a script from a sharing site may need adjusting to run.
  • The dashboard is plainer than Tampermonkey's, with no diff view when a script updates itself.
  • No cloud sync of the kind Tampermonkey and Violentmonkey offer; moving machines means exporting.
  • A userscript manager can read and rewrite every page you visit, so the security of the arrangement depends entirely on the scripts you choose to install.

Moodle

  • Self-hosted deployment requires significant IT resources and technical expertise
  • Managed hosting has higher costs for large institutions compared to self-hosting

Pricing, plan by plan

Greasemonkey

Free
  • Open sourceFree
    • Unlimited scripts
    • Built-in editor
    • No account required

Moodle

Free
  • Self-HostedFree
    • Full feature access
  • MoodleCloud Starter$200/year
    • 50 users
    • Managed hosting

Which should you pick?

Choose Greasemonkey if

  • You need userscript execution.
  • You want to start without paying.
  • You work on Firefox.
  • You also want built-in script editor.

Choose Moodle if

  • You need course management.
  • You want to start without paying.
  • You also want quiz builder.

Questions people ask

Is Greasemonkey or Moodle better?
Neither clearly leads. Greasemonkey starts at Free and Moodle at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Greasemonkey or Moodle?
Greasemonkey starts at Free and Moodle at Free.
Does Greasemonkey or Moodle run on more platforms?
Greasemonkey runs on Firefox. Moodle runs on Web.
Can I use Greasemonkey for free?
Both have a free tier, so you can try either at no cost before committing.
What is Greasemonkey best used for?
Greasemonkey is most often used for restyling or de-cluttering a site you use daily, automating a repetitive action on a web application, adding a missing feature to a site you do not control, running userscripts on firefox for android. Of those, restyling or de-cluttering a site you use daily and automating a repetitive action on a web application are not what Moodle is typically brought in for.
What can Greasemonkey do that Moodle cannot?
Greasemonkey covers Userscript execution, Built-in script editor, GM. API, @resource support. Moodle covers Course management, Quiz builder, Forums, Assignments.

Answered from the vendors’ own pages

Greasemonkey: Is Greasemonkey still maintained?

Yes. Version 4.14 was released on 2 June 2026, and the project has an active repository, bug tracker and discussion groups.

Source
Moodle: Is Moodle free or paid?

Moodle is free and open-source software. However, self-hosting requires IT resources and server infrastructure. Managed cloud hosting through MoodleCloud starts at $200/year for 50 users.

Source
Greasemonkey: Does Greasemonkey work on Chrome?

No. It is a Firefox extension and has never shipped for Chrome. Violentmonkey and Tampermonkey are the equivalents there.

Source
Moodle: What languages does Moodle support?

Moodle is available in over 160 languages, making it accessible to educators and learners worldwide.

Source
Greasemonkey: Will Tampermonkey scripts run in Greasemonkey?

Often, but not always. Greasemonkey's API diverged from the conventions most shared scripts are written against, so a script may need its header or its GM calls adjusted.

Source
Moodle: Is Moodle suitable for corporations and enterprises?

Yes, Moodle is suitable for K-12, higher education, vocational training, and corporate learning. Moodle Workplace is the enterprise edition with multi-tenancy and compliance tooling.

Source
Greasemonkey: Does Greasemonkey run on mobile?

On Firefox for Android, from version 4.12. There is no iOS build, because Firefox on iOS cannot load extensions of this kind.

Source
Moodle: What learning standards does Moodle support?

Moodle supports various e-learning standards including SCORM and Tin Can API for compatibility with other educational systems.

Source
Greasemonkey: What is the GM API?

The set of functions a userscript manager exposes to scripts, named after Greasemonkey, which defined it. Greasemonkey supports the promise-based GM. form including GM.xmlHttpRequest and GM.registerMenuCommand.

Source
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