Firefox add-on with keyword - airtime

Automatically change Firefox's theme based on the time.

All of your Summertime Saga needs !

Keep track of the time you spend in your browser, and get a clear picture of what you were doing all day.

A midnight theme ideal for dark modes. Features a beautiful nighttime landscape. This theme had the 'Recommended' badge for a while.

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See hospital timers in the faction war page

Keep track of how much time you spend on the web, and where you spend it. A toolbar ticker shows the time spent at the current site or the total time spent on the web today. A summary page sums up data for the past 70 days, 10 weeks, and 6 months.

Automatic time tracking for Firefox.

Track time from anywhere on the web and improve productivity.

Adds an icon to the address bar to provide load time information of the current page.

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This extension alters browser timezone to a random or user-defined value.

Stylish timer combined with stopwatch and alarm for your browser.

Display daily Muslim prayer times.

Check time in different regions, schedule urgent meetings in several clicks

Displays page load time in the toolbar

Discover your browsing habits! Time tracking at its best.

A pomodoro timer extension to help you be more productive.

Enjoy a lax dark blue and starry yellow animated star theme for all your nightly browsing! Find the non-animated version here: https://addons.mozilla.org/en-US/firefox/addon/nighttime-stars-theme/

Puts a timer into any web tool and allows quick real time productivity tracking with all the data stored on your Toggl Track account. Time tracking has never been easier!

Easily change your timezone to a desired value and protect your privacy.

reveddit real-time notifies you when any of your content on reddit has been removed.

Track your time on tasks from Jira, Asana, Trello, and others 3rd party apps. Requires Time Doctor desktop application.

Find out forex market hours at a glance.

Track how long you have watched different Twitch channels. Keeps a list of top channels and optionally show a time indicator.