Now you can easily display your Flickr account photos using a WordPress widget simply by adding your user ID. No authorization is required. Meks Simple Flickr Widget lets you do this in a very easy way. The plugin provides you a widget that can display your Flickr photos right by using your ID. You can set the thumbanil width and height in pixels.
Install and activate Meks Simple Flickr Widget then visit your admin area Dashboard -> Appearance -> Widgets page and drag its widget to your sidebar or any other widget area your theme provides you.
Now you can set up the widget by entering your Flickr ID. If you don’t know what your ID is then click the link provided in the widget and get it easily. Finally type the number of photos you like displaying, set the thumbnails width and height and save the widget. That’s all.