Mozilla Firefox Plugins, Add-ons and extension Page 35 of 74
Browse 1,830 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo including popular Mozilla Firefox options.
- Web Browser
- Free
- Open Source
StoriesOnBoard helps product managers, product owners, and business analysts understand customer needs, automate feedback collection, develop feature ideas, prioritize and validate what to develop next with a public roadmap, and rally all stakeholders around the story map.
Cost / License
- Paid
- Proprietary
Platforms
- Online
- Windows
- Mac
- Linux
- Software as a Service (SaaS)
- Firefox
- Chrome OS


+2
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Waterfox
- Pale Moon
- Firefox

A simple browser extension to bypass YouTube's age verification and watch age restricted videos without having to sign in.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Microsoft Edge
- Firefox
- Tampermonkey

This extension provides unlinkable cryptographic tokens for websites that support the Privacy Pass protocol. For example, these tokens can be used on Cloudflare-protected websites to redeem a token instead of solving a CAPTCHA.
Cost / License
- Free
- Open Source (BSD-3-Clause)
Platforms
- Google Chrome
- Firefox


+1
Fierr is an extension for Mozilla Firefox that replaces the default error page with a useful, visually appealing page with three buttons: Back, Reload, and Search. The background image of the error page is a high quality 500x500 logo matching the product.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Android
- Pale Moon
- SeaMonkey
- Firefox



After installing BookmarkDupes, the basic usage is rather simple: To open, click the extension symbol (duplicate stars) or use the link in the options page of the extension. Then select what you want to display: Bookmark duplicates, Empty folders, Non-duplicate bookmarks, All...
Cost / License
- Free
- Open Source
Platforms
- Mozilla Firefox
- Google Chrome



Need to test your web pages out in Internet Explorer, Chrome, Safari, Opera (or anything else for that matter)?
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Windows
- Pale Moon
- SeaMonkey
- Mozilla Firefox

Cost / License
- Free
- Open Source (MIT)
Platforms
- Microsoft Edge
- Google Chrome
- Firefox

The first dedicated pop-under blocker!
Block all these annoying popups and popunders that pop no matter where you click on a page. No configurations. Easy options. Transparent in use.
Cost / License
- Free
- Proprietary
Alerts
- Warning
Platforms
- Mac
- Windows
- Linux
- Google Chrome
- Firefox


New Tab Override was developed from the ground up as so-called WebExtension. This makes New Tab Override compatible with Firefox 57 and later. Not all options of the previous version are currently available as WebExtension.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Firefox


+5
Password Depot is a powerful and very user-friendly password manager which helps to organize all of your passwords. But also, for instance, information from your credit cards or software licenses.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Mac
- Windows
- Android
- iPhone
- Google Chrome
- Microsoft Edge
- Mozilla Firefox


+10
This app is free and allows you to have a great time with friends. It works together with the web version so your friends can join from any device.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Google Chrome
- Software as a Service (SaaS)
- Mozilla Firefox



Completely browser-based online meetings and webinars platform with interactive audio/video conferencing, screen sharing, recording, moderator tools, analytics, chat, and calendar integrations.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Google Chrome
- Electron
- Software as a Service (SaaS)
- Mozilla Firefox


+11
This extension will save automatically the content in textarea or WYSIWYG editor when user is typing. User can recover the saved texts in the cache window, even the tab or the window is closed unexpectedly.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux
- Firefox

Use the design system you already have. Extract design tokens from websites and use them in code and in your design tool.
Cost / License
- Free
- Proprietary
Platforms
- Mac
- Windows
- Linux
- Figma
- Google Chrome
- Adobe XD
- Firefox



Cost / License
- Free
- Proprietary
Application type
Platforms
- Google Chrome
- Twitch
- Mozilla Firefox


+1
An essential add-on for power users that have many tabs open. Curb your resource usage by unloading tabs that you haven't visited for a while. An unloaded tab is restored back to its original state when you need it again.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Firefox

WAVE is a visual web accessibility analysis tool that evaluates web accessibility based on the Web Content Accessibility Guidelines (WCAG).
Cost / License
- Free
- Proprietary
Platforms
- Online
- Firefox
A fork (copy with changes) of the original XKit addon, which improves your Tumblr experience. It is comprised with the ability to install more extensions, further adding more features.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Online
- Google Chrome
- Firefox


Cost / License
- Paid
- Proprietary
Application types
Platforms
- Online
- Google Chrome
- Firefox


+4
Modern browsers such as Mozilla Firefox can tell websites where you're located in order to provide location-aware functionality. Your geographic location is obtained through various means (eg. using wifi data) and is often highly accurate, which can be a violation of your...
Cost / License
- Free
- Open Source
Platforms
- Microsoft Edge
- Google Chrome
- Opera
- Firefox



i2Symbol is your ultimate source of free symbols, emoticons, smileys, and styled text for all social networks such as Facebook, Twitter, and Google Plus.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Google Chrome
- Firefox


+3
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Online
- Microsoft Edge
- Google Chrome
- Safari
- Firefox


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