Making a bookmark.

On the page you want to bookmark, do a right-click in an empty area of the page. At the top of the menu, press the Star. Hot key; <Control> (Mac=<Command>) D.

Or, Press the bookmarks Star on the toolbar.

This will place a bookmark in the Unsorted or Other Bookmarks Folder. To edit or move that bookmark, press the Star again.

A window will come up with the name of the page and its web address. You can edit these entries.

Next, select what bookmarks folder you want this bookmark in. If you do not see that folder, go to the far right of the Folder line, and press the down arrow. You can also create a new folder.

Due to your respond i guess i have to change folder every time when bookmark automaticlly is saved in diffrent folder

Future Firefox versions come with new features for handling bookmarks and one of these allow to set a default folder for saving a new bookmark. These new features are currently behind a Boolean pref named browser.toolbars.bookmarks.2h2020 (false for now).

See:

• Bug 1432604 - Allow the star panel to select the last used folder when bookmarking (fixed in early beta and earlier, behind browser.toolbars.bookmarks.2h2020)

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)