Copy Link Button / Copy Frame or Page URL
Copy Link button for the main toolbar (or address bar). Use the right-click context menu to "Copy Framed Page URL". See the full description and screenshots for all the "how to."
What is Copy Link Button / Copy Frame or Page URL?
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Chrome-Stats Rank
Other platforms
Summary
Copying the URL of the main/outer page
You've got options:
(1) Click the toolbar button (Shift+click for Markdown, Ctrl+click for HTML)
(2) Enable the optional in-address-bar button -- check the box on the extension options page
(3) Right-click in the page and use the "Copy Page URL" menu item (you can disable this item in the extension options)
(4) Use a keyboard shortcut of your choice -- set up your shortcut on the Add-ons page: https://support.mozilla.org/kb/manage-extension-shortcuts-firefox
Copying the URL of a framed page
Right-click in the framed page and use the "Copy Framed Page URL" menu item.
User reviews
Safety
Risk impact
Copy Link Button / Copy Frame or Page URL is relatively safe to use as it requires very minimum permissions.
Risk likelihood
Copy Link Button / Copy Frame or Page URL has earned a fairly good reputation and likely can be trusted.