A Firefox Web Extension to archive files to the Wayback Machine.

Available for Firefox here: https://addons.mozilla.org/firefox/addon/save-page-now-unofficial/.

Changelog: CHANGELOG.md

Either:

• Click on the toolbar icon to archive the current page
• Right-click on a page and select "Archive Page Now" to archive the current page
• Right-click on a link and select "Archive Link Now" to archive the linked URL

This addon is kept really simple on purpose. For more advanced features, see the following addons:

• Save To The Wayback Machine by "VerifiedJoseph": provides a nice popup with the date of the last time the page was archived, as well as links to the Wayback Machine
• archive-webextension by "zPlus": supports multiple backends in addition to the Internet Archive such as Archive Today or WebCite

• Strict minimum version is Firefox 55 for the tabs and contextMenus APIs.

We need the activeTab permission to retrieve the current tab's URL. We also need the contextMenus permission to add an entry to right-click menus.

When the user clicks on the browser action, we temporarily store (in memory) the current tab's URL and open https://web.archive.org/save in a new tab (background.js function onBrowserActionClicked()). From the new tab, we ask the background script what URL to save (save.js calls runtime.postMessage()). The background script replies with the previously noted URL, or null if we didn't open that tab (background.js function onMessageReceived()). Back in the new tab, we fill in the Save Page Now form and submit it on behalf of the user. (save.js)

Licensed under the MIT License.