jump-to-anchor

Context menu item to jump to the closest anchor to the selected text (if any) or to the right-click point otherwise.

Has option (on by default) on providing separate menu items for jumping to an anchor relative to selected text vs. the click point. Will otherwise always default to selected text when present.

Install for Firefox (AMO) or Chrome.

Detection algorithm

1. If the clicked node is text, skip to step #3.

2. If it is an element, check it for an id= or <a name=>, and if present, redirect to it and abandon steps.

3. If there is a previous adjacent element sibling of the clicked node, check from its deepest last child for an anchor, and abandon steps to redirect if an anchor is found.

4. Go back to #3 as long as there are previous adjacent element siblings.

5. Check for anchor on the parent node, and abandon steps to redirect if an anchor is found. If not, go to step #4.

6. Do nothing.

Related add-ons

I mostly just wanted an extension which could auto-jump to the closest anchor above the click point, and from there, copy it if desired.

If you want something which provides options such as highlighting the anchors on a page or adds context menu items to copy and bookmark the anchors, see Show Anchors 2.

Credits

The icon for this extension was obtained (and SVG optimized) from https://commons.wikimedia.org/wiki/File:Hash-transbg.svg under the Creative Commons CC0 1.0 Universal Public Domain Dedication.

To-dos

1. Convert to lighter-performance, and lesser-privileged activeTab privilege; waiting on https://bugzilla.mozilla.org/show_bug.cgi?id=1325814