multi-isearch-pause

multi-isearch-pause is a variable defined in `misearch.el'.
Its value is

t

Documentation:
A choice defining where to pause the search.
If the value is nil, don't pause before going to the next buffer.
If the value is `initial', pause only after a failing search in the
initial buffer.
If t, pause in all buffers that contain the search string.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 23.1 of Emacs.