icedtea-web-plugin(1)

💖 icedtea-web-plugin(1) — the manual, but make it make sense 💖

okay bestie, welcome to icedtea-web-plugin, from the General Commands Manual shelf. Yes the page header literally says icedtea-web-plugin(1) twice, that's just how manpages be. Let's get into it. 🫶

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✨ NAME ✨

icedtea-web-plugin — the whole entire point of this thing is to let you run java applets in your favorite browser. that's it. that's the job. 💅

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🌸 SYNOPSIS 🌸

icedtea-web-plugin is working in your browser, once your browser knows
about this files.

so the tea is: the plugin only does its little dance once your browser is aware of these files. the IcedTeaPlugin.so has to be placed, or linked, inside specific directories — no vibes-based magic, it has to physically be there. the full rundown lives at http://icedtea.classpath.org/wiki/IcedTea-Web#Plugin

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🦋 Mozilla-compatible browsers 🦋

this means Firefox, Midori, Epiphany, Chrome or Chromium — the whole squad. they look here:

• $HOME/.mozilla/plugins — where the plugin library lives for user's purposes on a Mozilla compliant browser 🎀
• /usr/lib64/mozilla/plugins — where it lives for global purposes on a Mozilla compliant browser, 64-bit systems
• /usr/lib/mozilla/plugins — same but for global purposes on a Mozilla compliant browser, 32-bit systems

💜 Opera family browsers 💜

like, y'know. Opera. those ones look here:

• /usr/lib64/opera/plugins — plugin library location for global purposes on an opera compliant browser, 64-bit systems
• /usr/lib/opera/plugins — plugin library location for global purposes on an opera compliant browser, 32-bit systems

lowkey required legal moment: All third-party trademarks are the property of their respective owners. periodt. ⭐

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🎀 FILES 🎀

the full cast of characters, no cap:

• $HOME/.mozilla/plugins/IcedTeaPlugin.so — location of plugin library for user's purposes on Mozilla compliant browser 💖
• $XDG_CACHE_HOME/icedtea-web/cache/recently_used — additional information about items in cache
• $XDG_CONFIG_HOME/icedtea-web/generated_jnlps — the location where jnlp files generated from html pages for javaws applications desktop/menu launchers icons are stored ✨
• $XDG_RUNTIME_DIR/tmp/icedteaplugin-user-* — contains in and out pipe for native2java communication and (if enabled) debugging pipe 🔥
• /usr/lib/mozilla/plugins/IcedTeaPlugin.so — location of plugin library for global purposes on Mozilla compliant browser, 32-bit systems
• /usr/lib/opera/plugins/IcedTeaPlugin.so — location of plugin library for global purposes on opera compliant browser, 32-bit systems
• /usr/lib64/mozilla/plugins/IcedTeaPlugin.so — location of plugin library for global purposes on Mozilla compliant browser, 64-bit systems
• /usr/lib64/opera/plugins/IcedTeaPlugin.so — location of plugin library for global purposes on opera compliant browser, 64-bit systems

and the important footnote bestie, don't skip it:

where $XDG_CONFIG_DIR, $XDG_CACHE_DIR and $XDG_RUNTIME_DIR are set as ~/.config, ~/.cache and /tmp or /var/tmp if not set. 🙈

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💀 BUGS 💀

There aren't any known bugs. iconic. flawless. (do not fact check me.)

but if you come across one — please file it at:

http://icedtea.classpath.org/wiki/IcedTea-Web#Filing_bugs
http://icedtea.classpath.org/bugzilla

and listen, this part matters: please run in debug mode before you file it. that's the -verbose switch, or the itw-settings setting, or the ICEDTEAPLUGIN_DEBUG variable set to true. include that output (best is from java console) plus a URL to the jnlp or html file (or the jnlp/html file itself, or the application itself) when filing out the bug report. we need the receipts, fr fr. 📝

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👑 AUTHOR 👑

The following people have made contibutions to this project. Please keep this list in alphabetical order. (yes, that's the original spelling of "contibutions", I am simply passing the vibe along 🫶)

• Lillian Angel <langel@redhat.com>
• Andrew Azores <aazores@redhat.com>
• Deepak Bhole <dbhole@redhat.com>
• Laurent Bourgès <bourges.laurent@gmail.com>
• Adam Buchta <adbuch7@gmail.com>
• Ricardo Martín Camarero <rickyepoderi@yahoo.es>
• Marcin Cieslak <marcin.cieslak@gmail.com>
• Danesh Dadachanji <ddadacha@redhat.com>
• Adam Domurad <adomurad@redhat.com>
• Lukasz Dracz <ldracz@redhat.com>
• Thomas Fitzsimmons <fitzsim@redhat.com>
• Olesya Gerasimenko <gammaray@basealt.ru>
• Michał Górny <mgorny@gentoo.org>
• Mark Greenwood <mark@dcs.shef.ac.uk>
• Tereza Hlavackova <hlavackova.tereza@gmail.com>
• Lars Herschke <lhersch@dssgmbh.de>
• Peter Hatina <phatina@redhat.com>
• Andrew John Hughes <ahughes@redhat.com>
• Jie Kang <jkang@redhat.com>
• Alex Kashchenko <akashche@redhat.com>
• Matthias Klose <doko@ubuntu.com>
• Alexandr Kolouch <skolnag@gmail.com>
• Jan Kmetko <jan.kmetko.ml@gmail.com>
• Francis Kung <fkung@redhat.com>
• Denis Lila <dlila@redhat.com>
• DJ Lucas <dj@lucasit.com>
• Omair Majid <omajid@redhat.com>
• Jon A. Maxwell <jmaxwell@users.sourceforge.net>
• Thomas Meyer <thomas@m3y3r.de>
• Kurt Miller <kurt@intricatesoftware.com>
• Saad Mohammad <smohammad@redhat.com>
• Martin Olsson <martin@minimum.se>
• Stefan Ring <stefan@complang.tuwien.ac.at>
• Ville Skyttä <ville.skytta@iki.fi>
• Fridrich Strba <fridrich.strba@suse.com>
• Andrew Su <asu@redhat.com>
• Joshua Sumali <jsumali@redhat.com>
• Joel Tesdall <jtesdall@mapcon.com>
• Michal Vala <mvala@redhat.com>
• Jiri Vanek <jvanek@redhat.com>
• Tomáš Votava <tomcacolca@gmail.com>
• Mark Wielaard <mark@klomp.org>
• Jacob Wisor <gitne@excite.co.jp>
• Man Lung Wong <mwong@redhat.com>

This project also includes code from the following projects:

• OpenJDK <http://openjdk.java.net/>
• Netx <http://jnlp.sourceforge.net/netx/>

absolutely ate. every single one. 🌈

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🌟 SEE ALSO 🌟

go read these next, bestie, they're all connected:

icedtea-web(1) javaws(1) icedtea-web-plugin(1) itweb-settings(1) policyeditor(1) policytool(1) java(1)

and the links:

http://icedtea.classpath.org/wiki/IcedTea-Web
http://icedtea.classpath.org/hg/icedtea-web

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and that's the whole page, mwah 💋 — brought to you by icedtea-web (1.8.8), dated 23 Mar 2026, and the manual itself is icedtea-web-plugin(1). go run some applets, you main character. 🧚✨