Caracal
В Симанки 1.1.19 есть эта кнопка.
А во второй вроде нет.

Может справка недопереведена или и в английской это место не обновили - всяко быват.

Добавлено 18-08-2010 21:32:24
В английской СМ вот так вот:

Browser Preferences - Helper Applications

This section describes how to use the Helper Applications preferences panel.
  If you're not already viewing it, follow these steps:

   1.   Open the SeaMonkey
          Edit menu and choose Preferences.

   2.   Under the Browser category, click Helper Applications. (If no
          subcategories are visible, double-click Browser to expand the list.)

The Helper Applications preferences panel lets you choose applications and
  other handlers to handle different types of content (e.g. PDF documents).
  It shows you a list of content types and lets you select a handler for each
  type. To filter the list, use the search field. Text entered in there will
  narrow the list to entries containing that text either in the type description
  or the currently selected action.

You can choose a local application to handle any type. For some types, you
  can also choose a web application to handle the type, choose
   a plugin in SeaMonkey to
  handle the type, or save the type on your computer.

To choose a handler for a type, select the type from the list. The current
  handler for the type will turn into a menu. Open the menu and select the
  handler you want to handle the type. Depending on the actual type, you can:

    *   Choose an application by selecting it from the menu. If you want a local
          application that is not in the menu to handle the type, select
          Use other… from the menu and navigate to its location.

    *   Choose a  plugin by selecting it from the menu.

    *   Save files of this type on your computer by selecting
          Save File from the menu. If you have selected the
          Automatically download files to specified download folder
          preference in the Downloads panel, SeaMonkey will
          save content of this type on your computer automatically. Otherwise, when
          you encounter this type, SeaMonkey will prompt you for a location on
          your computer to save it to.

    *   Tell SeaMonkey to always ask what to do when
          encountering this type. When you choose this option, a dialog will always be
          shown when files of this type are accessed, and you can choose how to handle
          that specific file from there.

Note: When a plugin is available to handle a type, and you
  choose another handler for that type, SeaMonkey will only use your
  chosen handler when you access the type directly. When the type is embedded
  inside a web page, SeaMonkey will continue to use the plugin to handle
  it. See also
  Plugins and Downloads.

В этом месте справки не учтен изменившийся GUI конкретной настройки. banbot упоминал об этом:

Есть. В правой части таблицы щелкнуть (дважды) по нужной строке, вывалится выпадающий список. Последняя строка в списке "Использовать другое".

Отредактировано navaga (19-08-2010 11:38:31)