Apps with 'Legacy addons support' feature

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Mozilla Firefox
Free • Open Source
Web Browser
Mac
Windows
Linux
Android
iPhone
Android Tablet
BSD
iPad
AppImageHub
Snapcraft
Flathub
PortableApps.com
Haiku
Homebrew
Chocolatey
Gecko
Flatpak
248 alternatives to Mozilla Firefox
Firefox is a cross-platform web browser developed by the Mozilla Foundation. Firefox is a popular product, used in over 50 languages and available for Windows, macOS, Linux, Android and iOS.
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Mozilla Firefox Features
1. Privacy focusedMozilla Firefox is considered a privacy friendly alternative.
2. Extensible by Plugins/ExtensionsMozilla Firefox can be extended with add-ons, plugins and extensions.
3. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
4. Block TrackersMozilla Firefox has a feature to block trackers from tracking you.
5. Picture in PictureMozilla Firefox allows you to put a video, web page or app in a floating window (always on top of other windows).
6. PortableMozilla Firefox can be used from a USB stick or similar with no prior installation.
7. Dark ModeMozilla Firefox supports dark mode for comfortable usage in low light conditions.
8. Ad-freeMozilla Firefox doesn't contain any form of external advertising.
9. Support for ThemesYou can use themes and templates to change the look and feel of Mozilla Firefox.
Customizable
Security focused
Non profit
Tracking Protection
Privacy settings
Add-ons
AdBlock Friendly
Support for HTML5
Website screenshots
Themes
Top 3 alternatives
Stremio
Free • Open Source
Video Streaming App
Media Center
Media Player
Mac
Windows
Linux
Android
iPhone
Android Tablet
Flathub
Flatpak
67 alternatives to Stremio
Media center allowing to watch movies, series, YouTube channels instantly. You can watch in HD, with subtitles, and easily cast any file to TV through DLNA, Chromecast, AppleTV!

Stremio also gives you notifications for new episodes / movies.
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Stremio Features
1. No registration requiredYou can use most of the features in Stremio without registration.
2. Dark ModeStremio supports dark mode for comfortable usage in low light conditions.
3. Personalized RecommendationsStremio can recommend content you like, whether it's something you already know or not.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Chromecast SupportCast your content to a Chromecast connected device with Stremio.
Automatic subtitles download
Casting to TV
Torrent player
TV Streaming
Built-in subtitle search
Media library
Built-in player
Stream video to Apple TV
No Buffering
PS4 Streaming
Top 3 alternatives
Thunderbird
Free • Open Source
Email Client
Calendar App
Mac
Windows
Linux
BSD
AppImageHub
Snapcraft
Flathub
PortableApps.com
Haiku
Homebrew
Chocolatey
93 alternatives to Thunderbird
Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.
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Thunderbird Features
1. Extensible by Plugins/ExtensionsThunderbird can be extended with add-ons, plugins and extensions.
2. Multiple Account supportThunderbird support multiple accounts without the need to logout and login
3. Calendar IntegrationThunderbird lets you sync your tasks and events with your calendar application.
4. Email OrganizerThunderbird allows you to take control of your inbox by filtering and control tools.
5. Dark ModeThunderbird supports dark mode for comfortable usage in low light conditions.
6. Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Thunderbird.
7. PortableThunderbird can be used from a USB stick or similar with no prior installation.
8. Support for ThemesYou can use themes and templates to change the look and feel of Thunderbird.
9. Integrated Password ManagerThunderbird lets you access all the passwords you’ve saved across your different devices.
IMAP Support
SMTP Support
FOSS
Built-in RSS reader
Add-ons
Intuitive
Graphical User Interface
POP3 Support
Customizable
Built-in Calendar
Top 3 alternatives
Waterfox
Free • Open Source
Web Browser
Mac
Windows
Linux
PortableApps.com
177 alternatives to Waterfox
Waterfox is a high performance browser based on the Mozilla platform. Made specifically for 64-Bit systems, Waterfox has one thing in mind: speed.
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Waterfox Features
1. Privacy focusedWaterfox is considered a privacy friendly alternative.
2. Extensible by Plugins/ExtensionsWaterfox can be extended with add-ons, plugins and extensions.
3. LightweightWaterfox consumes less device resources compared to similar apps.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. PortableWaterfox can be used from a USB stick or similar with no prior installation.
6. No TrackingWaterfox will not track you or use your personal data.
Firefox-based Browsers
Privacy enhanced
Support for 64 bit
Optimized Firefox
Support for Firefox extensions
Legacy addons support
Customizable
Classic extension support
Automated speed adjustments
Optimized for Windows
Top 3 alternatives
Pale Moon
Free • Open Source
Web Browser
Windows
Linux
Mac
202 alternatives to Pale Moon
Pale Moon is an Open Source, Goanna-based web browser available for Microsoft Windows and Linux (with other operating systems in development), focusing on efficiency and customization. Make sure to get the most out of your browser!.
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Pale Moon Features
1. LightweightPale Moon consumes less device resources compared to similar apps.
2. Privacy focusedPale Moon is considered a privacy friendly alternative.
3. No TrackingPale Moon will not track you or use your personal data.
4. PortablePale Moon can be used from a USB stick or similar with no prior installation.
5. Extensible by Plugins/ExtensionsPale Moon can be extended with add-ons, plugins and extensions.
Optimal performance
Customizability
Built-in RSS reader
Security focused
Based on Goanna engine
Support for Firefox extensions
Firefox-based Browsers
Customizable
Legacy addons support
Optimized Firefox
Top 3 alternatives
Ulauncher
Free • Open Source
Application Launcher
File Search Utility
Linux
43 alternatives to Ulauncher
- Ulauncher provides instant search results. It also remembers your previous choices and automatically selects the best option for you.
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Ulauncher Features
1. Extensible by Plugins/ExtensionsUlauncher can be extended with add-ons, plugins and extensions.
Integrated Search
Launcher
Legacy addons support
Smooth
Top 3 alternatives
Basilisk
Free • Open Source
Web Browser
Windows
Linux
Mac
137 alternatives to Basilisk
Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout and rendering engine (a fork of Gecko) and builds on the Unified XUL Platform (UXP), which in turn is a fork of the Mozilla...
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Basilisk Features
1. Extensible by Plugins/ExtensionsBasilisk can be extended with add-ons, plugins and extensions.
2. PortableBasilisk can be used from a USB stick or similar with no prior installation.
3. LightweightBasilisk consumes less device resources compared to similar apps.
4. No TrackingBasilisk will not track you or use your personal data.
5. Privacy focusedBasilisk is considered a privacy friendly alternative.
Based on Goanna engine
Legacy addons support
Support for Firefox extensions
Built-in RSS reader
Support for WebExtensions
Firefox-based Browsers
Tabbed browsing
Top 3 alternatives
Interlink Mail & News
Free • Open Source
Email Client
Windows
Linux
12 alternatives to Interlink Mail & News
Interlink Mail & News is a free e-mail client based on open source community code built on the Unified XUL Platform. It is available for Microsoft Windows and Linux (with other operating systems in development).
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Interlink Mail & News Features
1. Multiple Account supportInterlink Mail & News support multiple accounts without the need to logout and login
2. Integrated Password ManagerInterlink Mail & News lets you access all the passwords you’ve saved across your different devices.
3. Extensible by Plugins/ExtensionsInterlink Mail & News can be extended with add-ons, plugins and extensions.
4. Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Interlink Mail & News.
5. Support for ThemesYou can use themes and templates to change the look and feel of Interlink Mail & News.
SMTP Support
HTML Compose
IMAP Support
Legacy addons support
POP3 Support
Integrated Web Browser
S/MIME Support
Free API
Built-in RSS reader
Top 3 alternatives
Classic Add-Ons Archive
Free • Open Source
Mac
Windows
Linux
Waterfox
Pale Moon
Basilisk
SeaMonkey
Firefox
4 alternatives to Classic Add-Ons Archive
Classic Add-ons Archive catalog contains 93,598 versions of 19,450 Firefox add-ons created by 14,274 developers over the past 15 years using XUL/XPCOM technology before Mozilla decided to ruin the classic extensions ecosystem and go exclusively to WebExtensions.
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Classic Add-Ons Archive Features
Browser extension
Legacy Firefox Addon
Legacy addons support
Top 3 alternatives
Iceweasel-UXP
Free • Open Source
Web Browser
Linux
91 alternatives to Iceweasel-UXP
Historically, Iceweasel was a re-branding of Mozilla Firefox by the Debian project, with minimal modifications, in order to resolve branding disputes. Debian since discontinued Iceweasel in February of 2017 after reaching an agreement with Mozilla over the use of its trademark.
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Iceweasel-UXP Features
1. Extensible by Plugins/ExtensionsIceweasel-UXP can be extended with add-ons, plugins and extensions.
Legacy addons support
Firefox-based Browsers
Tabbed browsing
Support for Firefox extensions
Top 3 alternatives
Germ Fusion
Free • Proprietary
iPhone
iPad
Amazon Appstore
47 alternatives to Germ Fusion
Your goal is very simply to survive as long as possible by eating small germs or eat the other players and avoiding bigger players.Easy controls and fun graphic. Lets play germs (bacteria, viruses, fungi, protozoa) and eat everyone!.
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Germ Fusion Features
Legacy addons support
Top 3 alternatives
Icedove-UXP
Free • Open Source
Email Client
Linux
17 alternatives to Icedove-UXP
Historically, Icedove was a re-branding of Thunderbird by the Debian project, with minimal modifications, in order to resolve branding disputes. Debian since discontinued Iceweasel in February of 2017 after reaching an agreement with Mozilla over the use of it's trademark.
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Icedove-UXP Features
1. Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Icedove-UXP.
2. Integrated Password ManagerIcedove-UXP lets you access all the passwords you’ve saved across your different devices.
3. Support for ThemesYou can use themes and templates to change the look and feel of Icedove-UXP.
4. Multiple Account supportIcedove-UXP support multiple accounts without the need to logout and login
5. Extensible by Plugins/ExtensionsIcedove-UXP can be extended with add-ons, plugins and extensions.
6. Calendar IntegrationIcedove-UXP lets you sync your tasks and events with your calendar application.
Built-in Calendar
Gmail integration
IMAP Support
Tabbed interface
Legacy addons support
Customizable
Free API
Google Calendar integration
Built-in RSS reader
HTML Compose
Add a screenshot
Top 3 alternatives
Cookie Controller
Free • Proprietary
Cookie Manager
Mac
Windows
Linux
Waterfox
Pale Moon
Firefox
14 alternatives to Cookie Controller
Buttons for managing site cookie permissions, switching global cookie permissions on and off, browsing cookies, and removing cookies. The same functions are included for local and session storage.
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Cookie Controller Features
Legacy addons support
Discontinued
The extension doesn't work on Firefox 57: Mozilla does not provide all the necessary APIs that would allow this add-on to be migrated to WebExtensions. It still works on XUL-based Firefox forks like Waterfox and Pale Moon
Top 3 alternatives

Mozilla Firefox Features

Top 3 alternatives

Stremio Features

Top 3 alternatives

Thunderbird Features

Top 3 alternatives

Waterfox Features

Top 3 alternatives

Pale Moon Features

Top 3 alternatives

Ulauncher Features

Top 3 alternatives

Basilisk Features

Top 3 alternatives

Interlink Mail & News Features

Top 3 alternatives

Classic Add-Ons Archive Features

Top 3 alternatives

Iceweasel-UXP Features

Top 3 alternatives

Germ Fusion Features

Top 3 alternatives

Icedove-UXP Features

Top 3 alternatives

Cookie Controller Features

Top 3 alternatives