# Browsers

###### Identifier:

org.eclipse.ui.browser.browsers

###### Since:

3.0 (originally added in release 2.0 as org.eclipse.help.ui.browser)

###### Description:

For providing web browsers capable of displaying html documents at a given URL.

###### Configuration Markup:

<!ELEMENT extension (browser)*>

<!ATTLIST extension

point CDATA #REQUIRED

id CDATA #IMPLIED

name CDATA #IMPLIED>

<!ELEMENT browser (location)*>

<!ATTLIST browser

id CDATA #REQUIRED

factoryclass CDATA #IMPLIED

name CDATA #REQUIRED

os CDATA #IMPLIED

executable CDATA #IMPLIED>

An external web browser which will be displayed on the preference page General/Web Browsers providing the os attribute matches and a file is found in at least one of the specified locations.

- id - the unique ID of the browser.
- factoryclass - the implementation class for the browser factory. This class must implement the `org.eclipse.ui.browser.BrowserFactory` interface.
- name - the name of the browser (translatable).
- os - comma separated list of operating systems on which to search for this browser at the specified locations. Only browsers with matching OS will be used.
- executable - the executable filename

<!ELEMENT location (#PCDATA)>

Default install locations. These locations should not contain the initial path, as it will be substituted with all known drives. E.g. on Windows, a location of "test.exe" would look for "c:\test.exe", "d:\test.exe", etc. for all known drives.

On Windows, the path can also start with an environment variable, e.g. "%%ProgramFiles%\folder\test.exe". Note the double % at the beginning to prevent localization.

###### Examples:

The following is a sample usage of the browsers extension point:

     <extension point="org.eclipse.ui.browser.browsers">
      <browser
         id="org.eclipse.ui.browser.firefox"
         name="Firefox"
         os="Win32"
         executable="firefox.exe"
         factoryclass="org.eclipse.ui.internal.browser.browsers.MozillaFactory">
           <location>%%ProgramFiles%\Mozilla Firefox\firefox.exe</location>
           <location>%%ProgramFiles(x86)%\Mozilla Firefox\firefox.exe</location>
      </browser>
     </extension>

###### API Information:

The supplied factory class must implement the `org.eclipse.help.browser.IBrowserFactory` interface. Methods in that interface determine whether the factory is available on the given system, i.e. is capable of supplying browser instances, and create browser instances that implement IBrowser interface.

###### Supplied Implementation:

The `org.eclipse.help.base` and `org.eclipse.help.ui` plug-ins contain implementation of browsers on common platforms. Other plug-ins can provide different implementations. In the preferences, the user can select the default browser from among available browsers.

Copyright (c) 2000, 2005 IBM Corporation and others.
This program and the accompanying materials are made available under the terms of the Eclipse Public License 2.0 which accompanies this distribution, and is available at https://www.eclipse.org/legal/epl-v20.html/ SPDX-License-Identifier: EPL-2.0