Word list

E

e.g.

Abbreviation for “for example.”

Enhanced Tracking Protection

Always capitalized. Do not use Tracking Protection or Content Blocking. Internal abbreviation is ETP; do not use ETP in product UI or copy.

email

One word, lowercase, no hyphen.

Exit

To follow desktop platform conventions, use "Exit" in the application menu in Linux only. Windows is "Quit." MacOS does not have this function from the application menu.

extension

A type of browser add-on. Extension is lowercase when on its own. It can be singular or plural as needed and is always localized. See also Firefox Extensions.


F

features

Individual product features are capitalized unless there is an entry stating otherwise.

Final Release

Our internal name for the mainstream versions of Firefox; do not use in user-facing communications.

Firefox accounts

“accounts” is lowercase when it follows Firefox and when on its own; it can be singular or plural as needed and is always localized. The "a" in accounts is always lowercase, whether it's referred to generally (e.g., Help improve Firefox accounts) or a user's own account (e.g., Create or sign in to your Firefox account on the device where your logins are saved.)

Firefox Add-ons

Avoid using. When possible, use "Extensions and themes." Add-ons is capitalized when it follows Firefox, lowercase when on its own, though the O is always lowercase; it can be singular or plural as needed and is always localized. See also the Add-ons Terminology wiki entry.

Firefox Beta

Firefox Beta on the first mention, Beta on subsequent mentions, always capitalized.

Firefox Beta for mobile

“Beta for mobile” is also acceptable, but never “mobile Beta;” mobile is always lowercase.

Firefox browser

Use this to differentiate from another particular Firefox product (Firefox for Android, Firefox iOS, etc.); browser is always lowercase. Do not use this phrase in the product or product branding.

Firefox Developer Edition

Firefox Developer Edition on the first mention, Developer Edition on subsequent mentions, both words always capitalized.

Firefox for Android

Use this in most cases when referring to the mobile browser (see also “Firefox browser”); Android is always capitalized; never “Firefox Android,” “Firefox on Android” or any other variation.

Firefox for iOS

Use this in most cases when referring to the mobile browser (see also “Firefox browser”); never “Firefox iOS,” “Firefox on iOS” or any other variation.

Firefox for desktop

Use this to differentiate from the mobile browsers (see also “Firefox browser”); desktop is always lowercase; never “desktop Firefox” or “Firefox desktop.”

Firefox Extensions

Extensions is capitalized when it follows Firefox, lowercase when on its own; it can be singular or plural as needed and is always localized. See also the Add-ons Terminology wiki entry.

Firefox for mobile

Mobile is always lowercase; never “mobile Firefox” or “Firefox mobile.”

Firefox Focus

The name for our private mobile browser in iOS and Android. Firefox Focus on the first mention, Focus on subsequent mentions, always capitalized.

Firefox Nightly

Firefox Nightly on the first mention, Nightly on subsequent mentions, always capitalized.

Firefox Private

Use to reinforce user's launch experience on a private new tab and dock/taskbar shortcut. Title case. Private should be localized.

Firefox Themes

Themes is capitalized when it follows Firefox, lowercase when on its own; it can be singular or plural as needed and is always localized; formerly “Firefox Personas.” See also the Add-ons Terminology wiki entry.

free

This one is tricky as it means both “without cost” and “without restrictions” in English, though there are separate words for these concepts in many other languages; please be clear when using or avoid.

fullscreen

One word, lowercase, when referring to the view mode of the browser; use “entire screen,” “whole screen” or similar formulation in other cases.