Editing bookmarks in web browsers
Each web browser works somewhat differently, and their functionality can change with updated versions, so it is best to consult the software creators if you are having difficulty. Below are links to some online assistance, but keep in mind that newer versions may be available.
Chrome: https://support.google.com/chrome/answer/188842?hl=en&ref_topic=14680
Firefox: http://support.mozilla.org/en-US/products/firefox/customize/bookmark-options
IE: http://windows.microsoft.com/en-us/windows7/managing-your-internet-explorer-favorites
Safari: https://support.apple.com/kb/PH21465?locale=en_US
Additional help can be found by searching YouTube.