English (US) Dictionary

English (US) dictionary based on the official Mozilla dictionary.

The English (US) Dictionary Chrome extension repackages the official en-US dictionary from Mozilla's central repositories. It is built upon the SCOWL word list (size 60) and integrated with over 6,000 additional words contributed by Mozilla, ensuring comprehensive and accurate spell checking.

This extension is ideal for users seeking reliable American English spell checking support on the web. For guidance on using dictionaries in Firefox, please refer to Mozilla's support article. Additionally, there is a transparent process for reporting bugs and requesting new words to be added to the dictionary, facilitating continuous improvement and user involvement.

User reviews

The English (US) Dictionary add-on is appreciated as an essential tool for language support in Firefox and generally works well. However, multiple users face difficulties finding or using it after installation, leading to perceptions that it doesn't work. Many negative reviews stem from misunderstandings about how to enable or access the dictionary rather than actual functionality issues.
Pros
  • Provides English (US) dictionary support for Firefox
  • Works well when installed properly
  • Essential for spellcheck and language support
Cons
  • Some users report it is not working or 'nowhere to be found' after installation
  • Lack of visible interface or settings leads to confusion
  • Users blame the add-on or developer without understanding installation requirements
Recent reviews
by eggsandoatmeal, 2025-05-13

by sirviceman1, 2025-02-12

View all user reviews ›

Extension safety

Risk impact

English (US) Dictionary does not require any sensitive permissions.

Risk impact analysis details
  • Low This permission has no access or impact on the user's system or data, thus carrying no risk.
Risk likelihood

English (US) Dictionary has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • Low This extension was updated more than 6 months ago. Older versions are more likely to be stable and safe.
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