KMeleonWiki > FAQ

Frequently Asked Questions

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What is K-Meleon?

K-Meleon is an extremely fast, customizable, lightweight web browser based on the Gecko layout engine developed by Mozilla which is also used by Firefox. K-Meleon is free, open-source software released under the GNU General Public License.

What platforms does K-Meleon run on?

K-Meleon is designed specifically for Microsoft Windows (Win32) operating systems. There are no plans to port K-Meleon to other platforms. If you are looking for a Gecko-based browser for Linux, visit the Galeon project. Camino is a Gecko-based browser for Mac OS X.

What are the system requirements?

While a Pentium level processor is recommended, K-Meleon can run on 486 systems that meet the minimum RAM requirements. Please consult the release notes for particular versions of K-Meleon.

Users of Windows 2000 may experience problems due to the absence of msvcp60.dll. Install the Windows 2000 Support Tools from your setup CD or consult the Windows Update website.

Users of Windows 95, Windows 98 and Windows NT 4.0 may have to install Vcredist.exe to get the latest run-time components for Visual C++ applications.

Users of Windows 95 may also have to install shlwapi.dll (part of Internet Explorer).

What is new/improved/fixed in the latest version of K-Meleon?

Please consult the release notes for that particular version of K-Meleon.

How do I install/uninstall K-Meleon?

Please consult the release notes for the particular version of K-Meleon you want to install/uninstall.

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Does K-Meleon support current web standards?

Yes. K-Meleon uses the Gecko rendering engine developed by Mozilla, which is also used by Firefox. Gecko provides excellent support for current (X)HTML, CSS and DOM standards. K-Meleon has built-in support to run JavaScript.

Does K-Meleon support secure (encrypted) transmissions?

Yes. K-Meleon 1.1 provides SSL (version 3) and TLS support.

Does K-Meleon support tabbed browsing?

Yes, through the Layered Windows Plugin. Which is why the 'tabs' in K-Meleon are called 'layers' (there's a technical difference between layers and tabs that has to do with to the window management).

Does K-Meleon support Java?

Yes. To run Java applets in K-Meleon, you have to install the Java Runtime Environment (JRE). Once installed, K-Meleon automatically detects your JRE installation and no other configuration is necessary. You can download the JRE from the Java website. To see if the JRE is properly installed, open Help > About Plugins. If you see the Java Plug-in listed, K-Meleon properly recognizes the JRE.
Note: Java may not work when you change K-Meleon's browser identification (UserAgent) string.

What is the K-Meleon Loader?

The K-Meleon Loader preloads portions of the K-Meleon browser and thus allows it to launch more quickly - especially on low-end hardware. Be aware that the K-Meleon browser keeps running as long as the K-Meleon Loader is running. Some changes to the configuration of K-Meleon will not take effect until you close and restart the browser. When using it, you also have to close and restart the Loader to make such changes take effect. Review the details here.

What privacy features does K-Meleon include?

Under Tools > Privacy you can quickly enable/disable privacy-related features such as cookies, Java, JavaScript and popup windows, frames and HTTP referers. The Privacy Bar provides even more direct access. Cookie acceptance, image loading and popup blocking can be configured in detail through Edit > Preferences. Some more privacy-related settings can be found in Edit > Advanced Preferences. K-Meleon's UserAgent string can be quickly changed through Tools > User Agent. The Privacy Plugin empowers you to delete privacy-related data such as cache, cookies, history and passwords automatically at startup or at shutdown, or manually at any time. See Configurable Security Policies for more details on advanced privacy features.

Why does K-Meleon not include feature "X" (e-mail client, etc.)?

K-Meleon is intended to be a fast, customizable, lightweight web browser. It is designed to be a browser only, not a suite. Thus, it does not include features such as an e-mail client or a web page editor, which could bloat and slow K-Meleon down. Users are encouraged to use their favorite applications for these and other particular purposes. The K-Meleon developers will consider enhancements that improve the performance and usefulness of the browser.

Where are my K-Meleon profile and how change his path?

In K-Meleon installation you have an option named Multi-user Profiles. This option set if your profile is stored in your Windows user profile (checked) or in K-Meleon installation folder (unchecked). Your Windows user profile are in a similar path to: C:\Documents and Settings[username]\Program Data\K-Meleon\default\xxxxxxxx.slt
If you uncheck Multi-user Profiles option or you downloaded a K-Meleon file (.7z) without installer you have your K-Meleon profile in a K-Meleon installation folder, for example; C:\K-Meleon\Profiles\default\xxxxxxxx.slt
In this last case you have a file named profile.ini in your K-Meleon installation folder and his code is:


You can change your K-Meleon profile path changed values in this file:
isrelative => This boolean value (0(false) or 1(true)) set if path value is in K-Meleon install folder (one = in some K-Meleon subfolder).
path => This value define your K-Meleon profiles path. This must be full path if isrelative value is zero.
Example of external profiles folder;


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Bookmarking Systems

How do I use my existing Netscape/Mozilla Bookmarks?

The first time K-Meleon is run with the Netscape Bookmark Plugin enabled, it automatically creates a new bookmarks file in your profile directory. You also have the possibility of using your existing Netscape, Mozilla or Firefox bookmarks file in K-Meleon. Open Edit > Preferences and go to the Plugins section. Select Netscape Bookmark Plugin and press Configure.... This will open the Netscape Bookmarks Settings dialog where you can set the location of your bookmarks file. Specify the location of your existing Netscape, Mozilla/SeaMonkey or Firefox bookmarks file here.

Mozilla/SeaMonkey, Netscape and Firefox store their bookmarks file in their profile directory. Its location depends on your operating system. The following example is for the Mozilla/SeaMonkey profile directory:

Windows 95
C:\Windows\Mozilla\<profile name>\<random>.slt
Windows 98/ME
C:\Windows\Application Data\Mozilla\<profile name>\<random>.slt
Windows NT
C:\WinNT\Profiles\<user name>\Application Data\Mozilla\Profiles\<profile name>\<random>.slt
Windows 2000/XP
C:\Documents and Settings\<user name>\Application Data\Mozilla\Profiles\<profile name>\<random>.slt

Netscape creates its own folder in the same folder that contains the Mozilla folder. Firefox creates its folder within the Mozilla folder.

Note: K-Meleon's bookmarks plugin does currently not support Firefox's live bookmarks and favicons.

How do I use my existing Internet Explorer Favorites?

K-Meleon's IE Favorites Plugin automatically locates and uses your Favorites. This plugin does not import your Favorites, it allows you to share your Favorites between K-Meleon and Internet Explorer!

K-Meleon's Netscape Bookmark Plugin allows you to import your Favorites into your bookmarks file. Choose Bookmarks > Edit... and then press Import Favorites.

How do I use my existing Opera Hotlist?

The first time K-Meleon is run with the Opera Hotlist Plugin enabled, it will automatically create a new empty hotlist file in your profile directory. You also have the possibility of using your existing Opera hotlist file in K-Meleon. Open Edit > Preferences and go to the Plugins section. Select Opera Hotlist Plugin and press Configure.... This will open the Opera Hotlist Settings dialog where you can set the location of your hotlist file. Specify the location of your existing Opera hotlist file here.

What are Hotlinks?

Hotlinks are provided through the Macro Extension Plugin and are in a way K-Meleon's own bookmarking system. Very simple, yet efficient. Through Tools > Hotlinks... you have the possibility to assign an URL to each of the key combinations Ctrl+0, Ctrl+1, ..., Ctrl+9. Note that javascript: URLs usually won't have the desired effect when set to open in a new window/layer.

Where K-Meleon saved my Bookmarks and how change it?

K-Meleon saved yours Bookmarks in bookmarks.html file in your K-Meleon user profile. You can found your exact path following next steps; go to menu Edit -> Preferences -> Select Plugins section, select Netscape Bookmark Plugin and click over Configure... button. You can see and change this value in Bookmarks file: option.

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What do each of the default K-Meleon plugins do?

Bitmapped Menus
Displays icons in menus.
External Control Plugin
Allows programmers to interface with K-Meleon from within their own programs.
Fullscreen Plugin
Adds support for full screen display.
History Plugin
Allows to view the global history and adds right-click menus to the back and forward buttons.
IE Favorites Plugin
Provides support for Internet Explorer Favorites.
KMeleon JS Bridge
Allows XUL applications to manipulate K-Meleon's menus. Currently only used by the Advanced Preferences panel.
Layered Windows Plugin
Simulates tab-like behavior by grouping windows together and keeping most of them invisible.
Macro Extension Plugin
Adds macro language support which enables many additional features in K-Meleon, see the macro library.
Mouse Gestures Plugin
Adds the ability to perform commands and macros with a combination of mouse movements and right clicks. Configurable through Tools > Mouse Gestures....
Netscape Bookmark Plugin
Provides support for Netscape/Mozilla-style bookmarks.
Opera Hotlist Plugin
Provides support for Opera-style bookmarks (Hotlist).
Privacy Plugin
Allows to clear privacy-related data (cache, cookies, history and passwords).
Rebar Menu Plugin
Makes the menu bar a rebar (toolbar). This will allow you to move the menu bar around just like a normal toolbar, but this may break compatibility with screen-readers.
Session Saver Plugin
Allows to save and restore sessions. Currently not compatible with layers.
Toolbar Control Plugin
Provides support for customizable toolbars. See also the KMeleonThemesWiki.

How do I enable/disable a K-Meleon plugin?

Open Edit > Preferences and go to the Plugins section. Select the plugin in question and press Enable/Disable. A green checkbox background indicates that a plugin is currently loaded. Checked plugins will be loaded next time K-Meleon starts.

How do I make K-Meleon use a third party Netscape/Mozilla plugin?

K-Meleon automatically detects the Adobe Acrobat Reader, the Sun Java Runtime Environment, Apple QuickTime and Windows Media Player. Flash and Shockwave setup programs automatically detect K-Meleon.

If it's not working automatically, any Mozilla plugin should work by being copied into K-Meleon's plugins directory (not kplugins directory), which is located in the K-Meleon installation directory. You can check the status of any plugin by opening Help > About Plugins. All your plugins currently used by K-Meleon will be listed there. For more information please review the page about third party plugins.

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Customization and Options

Does K-Meleon support skins/themes?

Yes. K-Meleon is very easy to skin. You can find quite a number of skins in the KMeleonThemesWiki. In order to install one, simply extract the provided ZIP archive into K-Meleon's skins directory (the files of the new skin must all end up in a new subdirectory of the skins directory). After a restart of K-Meleon, you can select the new skin in the Preferences dialog. You have to restart K-Meleon to changes made to the skin take effect.

Does K-Meleon support command line options?

Yes. Please review the page about command line options.

Does K-Meleon provide localization/multi-language support?

Yes. K-Meleon automatically attempts to recognize documents' character sets and display them properly. The browser's user interface is fully translatable since version 1.0 and supports multiple languages since version 1.1. Official localizations and language packages (to be installed additionally) can be found in the Download section. If you're interested in creating your own translation/localization, please refer to the Localization page.

Does K-Meleon allow to middle-click links to the background?

Yes. Mouse accelerators such as MiddleClick, Ctrl+LeftClick, Ctrl+RightClick to open links in new (background) layers, can be configured quickly throug Tools > Mouse Accelerators. Simply choose the configuration that best fits your needs:

  Default Firefox 2.0 SeaMonkey 1.1
MiddleClick Open in foreground Open in background Open in background
Ctrl+LeftClick Open in foreground Open in background Open in background
Ctrl+RightClick Open in background Open in foreground Open in foreground
Ctrl+Shift+LeftClick (nothing) Open in foreground Open in foreground
Shift+MiddleClick (nothing) Open in foreground Open in foreground
Shift+LeftClick Open in foreground Open in new window Save link target

How do I customize key commands?

Key commands (accelerators) can be customized by editing the accel.cfg file. Choose Edit > Configuration > Accelerators or open Edit > Preferences, select Configs and go to the Accelerators tab. Explanations can be found on the Configuration Files page.

How do I set up macros?

K-Meleon 1.1 provides support for modular macros to ease up macro installation. You can install a module (a text file with extension kmm) by placing it in your user macro folder (open Edit > Configuration > User-defined Macros). To enable/disable installed modules, open Edit > Advanced Preferences and go to Macro Extension. User-submitted ready-made modules can be found in the macro library.

How do I set up profiles?

Profiles can be added, deleted and renamed using the profile manager (choose Edit > Manage Profiles...). For advanced customization, you might want to review the details on profile location.

How do I configure proxies?

For detailed proxy configuration open Edit > Preferences and select Proxy. K-Meleon only accepts hostnames for manual proxies. For proxies such as Junkbuster that do not support the most recent HTTP specification, you can set K-Meleon to use HTTP 1.0 instead of 1.1 on the General tab in Preferences.

Through Tools > Proxy you can quickly switch between several proxy settings. Note that the custom proxy settings are currently limited to the HTTP protocol.

How do I put Layer/Tab bar at the bottom?

You can found this and others advanced preferences in K-Meleon Preferences page.

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Why does website "X" not display/work properly? Is it a K-Meleon bug?

Probably not. A site not displaying/working properly is normally caused by one of three issues:

  1. The site is not compliant with current HTML standards.
    Try out how the site is looking in Internet Explorer (e.g. press Ctrl+Alt+I). Still a lot of websites use proprietary HTML markup and/or JavaScript code that only works correct in IE.
  2. The site is using browser-specific JavaScript.
    Try out how the site is working when you change K-Meleon's UserAgent string e.g. to Firefox' or SeaMonkey's. Still a lot of websites fail to detect K-Meleon as a Gecko-based browser.
  3. The display problem is due to a Mozilla bug.
    Try out how the site is looking in another Gecko-based browser e.g. Firefox or SeaMonkey.

You can report such problems to the K-Meleon Forum - somebody may attempt to determine the source of the problem. Keep in mind that the particular authors are responsible for a website, not the K-Meleon developers.

Why does my personal firewall issue an alert that K-Meleon is requesting server rights?

The Personal Security Manager (PSM) in Mozilla, which K-Meleon is built on, uses sockets for communication between its security components. These communications are internal to the browser and do not go out to the Internet. There is no danger in allowing K-Meleon this access. All Mozilla browsers behave like that.

Why does K-Meleon not display colors properly when the monitor resolution is set to 256 colors?

Mozilla/Gecko does not provide proper support for 256 colors. See Mozilla Bug #88560.

Why does the ZIP/7Z version of K-Meleon refuse to run on my system?

Your system is missing the libraries msvcp71.dll and msvcr71.dll (these are not included in the ZIP/7Z versions). You can get these files from the Lontronics website, for instance (download and install their dll-installer).

Why is K-Meleon opening two windows or displaying a "Can't open..." error message when I open an URL from an e-mail program or an Internet Shortcut?

This type of problem is usually the result of the DDE (Dynamic Data Exchange) option being enabled in the Windows Registry for the type of URL that you are trying to open. In Windows Explorer, open Tools > Folder Options... and select the File Types tab. When you've found the type of URL in question (e.g. URL:HTTP ...), select it and click Edit.... In the list of Actions select open and click Edit.... Uncheck the Use DDE checkbox and press OK until you are finally out of the Folder Options dialog.

Why do I get an error message on Windows 9X/NT related to mfc42.dll?

Your system is missing certain libraries. See the system requirements.

Why do the Bookmarks menu and/or other plugin menus not appear?

Your system is missing certain libraries. See the system requirements.

Where can I get more help?

Please review the release notes of the K-Meleon version you are using for known issues/problems.

Submit your question(s) to the K-Meleon Forums (registration is not required to post and providing an e-mail address is optional). Be prepared that it may take some time until somebody knowing the answer(s) to your question(s) will read your post(s). So, check back from time to time. Bookmark the thread(s) you posted to in order to find them again later.

If you think you've found a bug, ask in the Forums first. In any case, make yourself familiar with our Bug Reporting Guidelines before you file a report in our Bug Tracking System (requires registration). Be prepared that you are asked to provide more information - you have to help us to help you.

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