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In one of my production environment, we have download restrictions so we have to download Eclipse plugin jar/zip file externally and then copy back to internal network and do the installation manually. Plugins to install are TestNG, C++ CDT etc.

Would appreciate step-by-step instructions to perform the above task and would this manually installation have the same outcome as if we do it from Eclipse install new software option like for example- automatically creating menu option for TestNG etc.?

Harsh S.
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  • possible duplicate of [How to install plugins on Eclipse](http://stackoverflow.com/questions/2906152/how-to-install-plugins-on-eclipse) – Nabin Jul 22 '15 at 04:27

2 Answers2

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You can try this

click Help>Install New Software on the menu bar

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Kyaw Zin Htun
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    Thanks that's the solution I desired. It is also quite neatly explained. – Harsh S. Jul 22 '15 at 13:55
  • glad to hear that and help you. – Kyaw Zin Htun Jul 23 '15 at 03:43
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    I am trying to follow the above procedure to install maven-resources-plugin-3.1.0.jar downloaded from https://repo.maven.org/maven2, but it fails with "Could not find jar:file/C:/tmp/maven-resources-plugin-3.1.0.jar!". Installing directly from the Maven Repo fails because of firewall issues I have no control over. – bobmcn Aug 09 '18 at 17:39
  • How do you get marketplace plugins as standalone files on your computer? – john k Nov 24 '20 at 17:12
  • I'm on a mac: help > install new software does not exist – richie Sep 04 '21 at 20:32
  • [This answer](https://www.eclipse.org/forums/index.php/t/198699/) from the Eclipse forums may help those who encounter the "Could not find jar:file" error that @bobmcn mentioned above. I'm pretty sure this only applies to plugin developers though. – Jasperan Sep 21 '21 at 19:51
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    For the problem "Could not find jar:file" (for me experienced unfortunately on Windows) try to fix the path and change `jar:file:/C:/....` into `jar:file://C:/....` (one `/` is missing after `file:`) – Tomasz Hławiczka Jan 27 '22 at 11:24
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  1. Download your plugin
  2. Open Eclipse
  3. From the menu choose: Help / Install New Software...
  4. Click the Add button
  5. In the Add Repository dialog that appears, click the Archive button next to the Location field
  6. Select your plugin file, click OK

You could also just copy plugins to the eclipse/plugins directory, but it's not recommended.

Cos64
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    Thanks this is also the correct answer. But the other answer used pictorial sequence with text to nail it. Appreciate your effort for the prompt response! – Harsh S. Jul 22 '15 at 13:59