Tabs are used to be able to view many web pages at the same time. Each tab contains exactly one buffer—multiple buffers per tab are not supported. As a result many buffer and tab commands are interchangeable.
Execute {cmd} and tell it to output in a new tab. Works only for commands that support it, currently:
Execute {cmd} and tell it to output in a new window. See :tab for the list of supported commands.
Duplicate the current tab and switch to the duplicate. If [count] is given, duplicate the tab [count] times.
Repeat last :buffer! command. This is useful to quickly jump between buffers which have a similar URL or title.
Go to the next tab. Cycles to the first tab when the last is selected. + If [count] is specified go to the [count]th tab.
Go to the next tab. Cycles to the first tab when the last is selected. + If [count] is specified go to the [count]th next tab.
Go to the previous tab. Cycles to the last tab when the first is selected. + If [count] is specified go to the [count]th previous tab.
Switch to the next or [count]th tab. Cycles to the first tab when the last is selected and [count] is not specified.
Switch to the previous tab or go [count] tabs back. Wraps around from the first tab to the last tab.
Select the previously selected tab. This provides a quick method of toggling between two tabs. If [count] is specified, go to the [count]th tab.
Go to the specified buffer from the buffer list. Argument can be either the buffer index or the full URL. If [count] is given, go to the [count]th buffer.
If argument is neither a full URL nor an index but uniquely identifies a buffer, it is selected. With [!] the next buffer matching the argument is selected, even if it cannot be identified uniquely. Use b as a shortcut to open this prompt.
If argument is #, the alternate buffer will be selected (see <C-^>).
If no argument is given the current buffer remains current.
Switch to the first tab.
Detach the current tab, and open it in its own window. As each window must contain at least one tab it is not possible to detach the only tab in a window. Use :tabduplicate to copy the tab then call :tabdetach.
Attach the current tab to another window. {window-index} is an index into the list of open windows and [tab-index] is the index at which to insert the tab in the other window's tab list. If this is the last tab in a window, the window will be closed.
Move the current tab to a position after tab [N]. When [N] is 0, the current tab is made the first one. Without [N] the current tab is made the last one. [N] can also be prefixed with "+" or "-" to indicate a relative movement. If [!] is specified the movement wraps around the start or end of the tab list.
Delete current buffer (=tab). If [count] is specified then [count] tabs are removed. Afterwards, the tab to the right of the deleted tab(s) is selected.
When used with [arg], remove all tabs which contain [arg] in the hostname. [!] forces this command to also search for [arg] in the full URL and also the title of the tab. Use with care.
Undo closing of a tab. If a count is given, don't undo the last but the [count]th last closed tab. With [url] restores the tab matching the URL.
Undo closing of all closed tabs. Swiftweasel stores up to 10 closed tabs, even after a browser restart.