In Browser Chrome by Google or Firefox and Thunderbird by Mozilla môžete v základnom prevedení upraviť iba jedno nastavenie internetového pripojenia. Ak chcete vybrať priame pripojenie alebo rôzne nastavenia proxy, potom musíte dialóg "Nastavenia pripojenia" použiť viackrát samostatne.

S ProxySwitch môžete spravovať rôzne nastavenia a jednoducho sa medzi nimi prepínať. The following documentation describes the complete range of functions. The extension contains the appropriate documentation.


From Firefox 57, the previously used native interface (XUL) has been omitted, this caused a complete reprogramming with the new interface WebExtension of Firefox. This interface does not yet contain all previous functions. Therefore, in the extension ProxySwitch for WebExtionsion the affected function is removed first.


By default, the Chrome browser uses the system settings for proxy configuration. The extension does not use the system settings for Chrome, but the settings specified in the extension. Other programs still use the system settings for access to the Internet.


Gratis version (freeware and open source)
MM3-ProxySwitch - Firefox & Chrome Extension (Add-ons)


Editor nastavenia proxy

You can use the following keywords for the configuration:
http, ssl, ftp and SOCKS
Môžete použiť nasledujúce protokoly
For the protocol socks version 4 you enter: socks4
The same proxy is used for all protocols.
Môžete definovať viac domén s atribútom noProxy, pre ktoré proxy nebude použitý.
Several domains are separated by a comma. This corresponds to the syntax of Firefox.
URL to the script for the automatic proxy configuration.
With the parameter reload the script is loaded newly when switching.

Každé nastavenie má definovaný názov a začína znakom [ a končí znakom ].
Tento názov je zobrazený vo vyskakovacej ponuke.
Znaky [ a ] ako aj každý protokol musia byť v novom riadku.
Tak ako v nasledujúcej ukážke.

[MM3-WebAssistant http = ssl = ftp = noProxy= ] [localProxy all= ] [provider http=HTTP-Proxy of you provider ] [script1 url= ] [script2 url=reload ]

The two following proxy settings can in addition be specified:

Auto-detect proxy settings for this network
Use system proxy settings
[Auto ] [System ]


When switching over the proxy configuration a other homepage can be displayed. To this you indicate the homepage at the respective proxy configuration with the keyword homepage.

[MM3-WebAssistant http=... homepage= ]

Delete browser cache

Before you use the Offline Browser WebAssistant - Proxy Offline Browser, the cache of your browser should be deleted. With the keyword clear this is carried out automatically.

[MM3-WebAssistant http=... clear=cache ]


To switch between different proxy configurations, you can use the following four keyboard shortcuts:


The first four proxy configurations are activated or switched over.

An individual assignment of shortcuts by users does not provide WebExtionsion. If another extension already uses the same shortcuts, you have to decide which extension should use these shortcuts. In that case, delete both extensions and install the extension first, which should use the hotkeys.

Activation of a proxy configuration

If you select a proxy configuration, then this is immediately used per default. With active=no the select configuration is entered. The direct connection to the internet is used, however.

[MM3-WebAssistant http=... active=no ]
This is obvious if you use the automation of the proxy configuration and you don't need a proxy at every location.

Change Symbol

The keyword symbol can be used to change the representation for a proxy configuration. This allows each active proxy configuration or a direct Internet connection to be displayed differently.

symbol=[color:color value;] [colorActive:color value;] [shape[:square]]
color:color value
For a direct Internet connection
Default color value is #808080 for gray
colorActive:color value
For an active proxy configuration
Default color value is #900 for red

Color value must be specified according to HTML or CSS syntax.

By default, the symbol is displayed
Symbol is displayed as a square

The keywords can be defined inside and outside a proxy configuration; within, the keywords apply only to this proxy configuration.

[MM3-WebAssistant http=... symbol=colorActive:green ] [Company http=... symbol=colorActive:blue;shape:square ] ... symbol=color:#000

For a direct Internet connection, the symbol is always displayed in "black" (#000). If the proxy configuration MM3-WebAssistant is activated, the symbol MM3 is displayed "green". If the proxy configuration Company is selected, the symbol is displayed as a square. If Company is then activated, the color changes from "black" to "blue".


Comment lines start with the character: #
These lines can only contain comments.

# Example: MM3-WebAssistant - Proxy Offline Browser [MM3-WebAssistant http=... ]

DNS lookups

The keyword proxyDNS controls whether DNS lookups for SOCKS v5 clients happen on the client or on the proxy server. With the value true the proxy server perform DNS lookups.

[Company socks=... proxyDNS=true ]
With the Chrome browser, the proxy server always requests the DNS, so the keyword is omitted.

Automation of the proxy configuration

If you use different networks with your laptop computer, then the required configuration can be determined automatically. There are two possibilities for it.

Automatic switching

Starting the Firefox it is checked whether an URL is available. Into dependence of this test the direct connection to the Internet or the proxy is used.

testUrl=URL [direct|proxy|both]
URL to be checked.
Check is executed if you activate in the Firefox: Direct connection to the Internet.
Check is only executed if a proxy configuration is activated.
Check is always executed

If in the test the URL is available, the proxy configuration is used.

The testURL can be noted inside and outside a proxy configuration; for inside, the testURL only applies to this proxy configuration.

[MM3-WebAssistant http=... testUrl= both ]

The availability of the WebAssistant - Proxy Offline Browser is checked here.
If this proxy has started, then this is used.

IP-Address determines proxy configuration

The IP address used currently determines the matching proxy configuration from several deposited entries.

The respective IP address is the name of the proxy configuration.
If you need an area of IP addresses, then you indicate only the constant part with that the IP address starts.

Optional the configuration with the name: default
This configuration is used, if nones of the given IPs are found.

You see the used syntax at the following example.

  • Configurations for the IP adresses:
    • IP address:
    • IP address area: to
  • One configuration for all other IPs
Enter for this in the editor: [ http=... ] [10. http=... ] [default http=... ] import=IP

The entry import=IP activates this function so that at every restart of the Firefox the matching proxy configuration is used.
Alternative: Use the ProxySwitch menu: Import IP

If your computer binds several IPs at the same time, the order of the configurations is importance. The search for a matching IP starts with the last configuration.

Import of the proxy configuration from the Internet Explorer

If your Internet Explorer is already configured automatically into dependence of your network environment, then you can use this configuration also in the Firefox.

This proxy configuration gets the name in the ProxySwitch: IE

Enter for this in the editor: import=IE

Now every restart of the Firefox imports the active proxy configuration of the Internet Explorer.
Alternative: Use the ProxySwitch menu: Import IE

Function is only available in the Firefox (version 1.5 and higher) for Windows.

Preference config

Would you like to change further preferences at switching of the proxy configuration? You set these to the keyword config: and a preference (name=value) at the respective proxy configuration.

[ProxyDNS socks=... config:network.proxy.socks_remote_dns=true ]

The preference name network.proxy.socks_remote_dns controls whether DNS lookups for SOCKS v5 clients happen on the client or on the proxy server. With the value true the proxy server perform DNS lookups.

Standard settings

If you liked to assign a standard setting to a keyword, then you give this pre-allocation after the last closing bracket ].

This is possible for the following keywords:
http, ssl, ftp, socks, socks4, socks5, noProxy, clear and homepage

[MM3-WebAssistant http=... ] clear=cache homepage=

Editor: Format

The type can be formed with CSS syntax for font, size, colour, background etc.

Code for the formatting
[MM3-WebAssistant http=... ] style:editor=font-family:monospace;

In the editor the text is displayed with a monospace font.


Creative Commons LicenseCreative Commons GNU General Public LicenseGNU GPL

You would like to save web pages and use these offline?

The ProxySwitch completes ideally the WebAssistant - Proxy Offline Browser.

You would like to save web pages and use these offline?

With the WebAssistant you click a link and the page is shown as normal, also adds the page to an archive on your hard disk enabling offline access, bookmarking and searching.

Go to Download WebAssistant - Proxy Offline Browser


MM3-ProxySwitch - Firefox & Chrome - Razširitev (Add-ons)