# wuDict Hover

> Show wudict dictionary definitions on hover, optionally behind a modifier key.

Canonical page: [https://chrome-stats.com/d/wudict-hover](https://chrome-stats.com/d/wudict-hover)

## Overview

- **ID:** `wudict-hover`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** glwnd
- **Category:** search-tools,language-support
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 0.1.0
- **Last updated:** 2026-08-29
- **First published:** 2026-08-26
- **Size:** 86 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/wudict-hover/)
- **Website:** [https://github.com/wuweidict/wudict-browser-extension/issues](https://github.com/wuweidict/wudict-browser-extension/issues)

## Description

With the wuDict Hover extension you can quickly get a definition for any word in Firefox  by hovering (with an optional key) or via the right-click context menu - no need to copy-paste words into another app.

The extension needs the open-source wuDict server — see <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/bfbe0cd2ae4bb624812ccb97ee94bde6d87196bdffe202625c3b593a16ae471c/https%3A//github.com/wuweidict/wudict" rel="nofollow">https://github.com/wuweidict/wudict</a> —  to be running on the same computer or another computer in your local network. wuDict server is a web app that for local dictionaries in AARD2 (.slob), Octopus (.mdx/.mdd), Babylon (.bgl), Stardict (.ifo), Abbyy Lingvo (.dsl) formats.

You need a running <strong>wuDict</strong> server, by default listening on <code>127.0.0.1:6888</code>. You can also configure the wudict server to run on another computer in your local network, and then set the IP address in the extension settings.

Without a running wudDict server the browser extension cannot work.

<ol><li>Start <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/bfbe0cd2ae4bb624812ccb97ee94bde6d87196bdffe202625c3b593a16ae471c/https%3A//github.com/wuweidict/wudict" rel="nofollow"><strong>wudict</strong></a>.</li><li>Install the extension (above).</li><li>Hover any word, keep holding <strong>Alt</strong>. The popup opens.</li><li>Release Alt, move into the popup — it stays while your pointer is inside; leaving dismisses it after 400 ms. <strong>Esc</strong> dismisses instantly.</li></ol>
If not triggering: <strong>Options → Test connection</strong> says which of the three things is wrong — nothing listening, a wudict too old to answer extensions, or a working connection and a hover setting.

Hover is the fast path, not the only one. Nothing here requires the others to be enabled.
<ol><li><strong>Hover</strong> — point at a word, hold <strong>Alt</strong> (configurable, or no key at all)</li><li><strong>Selection</strong> — select text, right-click → <strong>Look up "…" in wudict</strong> — or <strong>Alt+Shift+W</strong></li><li><strong>Toolbar</strong> — click the wuDict Hover icon → type in the search box and hit Enter</li></ol>
The selection menu exists for exactly the case where hover is unwanted: turn hover off entirely and the extension still works, with no key held and no pointer timing.

Clicking the icon opens a panel with the most common actions.
<ul><li><strong>Connection</strong> — live: connected · <em>n</em> dictionaries, or the failure named for what it is — <strong>Cannot reach …</strong> (nothing listening) or <strong>… is not answering extensions</strong> (a wudict older than this release) — with <strong>Retry</strong>, and, only in that second case, a <strong>Grant access</strong> button that switches to the host-permission fallback in place</li><li><strong>Search box</strong> — opens the full wudict page for the word, all dictionaries</li><li><strong>Hold key</strong> — the setting people actually change</li><li><strong>This site</strong> — pause hover on this host without touching the master switch; the list of paused sites is on the options page</li></ul>
The icon itself reports state before you click it: <strong>coloured</strong> when hover is live here, <strong>grey</strong> when paused globally or on this site, with an amber <strong>!</strong> badge when wudict cannot be reached. Hover the icon for the whole sentence.

Right-clicking the icon adds <strong>Pause on <em>host</em></strong> · <strong>Test connection</strong> · <strong>Open wudict</strong> · <strong>Options</strong> above the browser's own items.

<strong>Alt+W</strong> — open the toolbar panel
<strong>Alt+Shift+W</strong> — look up the current selection

The popup shows one entry per dictionary (up to 3 by default), streamed in as dictionaries answer — the fastest result paints first.

wuDict does <strong>no morphology</strong>: the word <code>running</code> is found only if a dictionary has this exact entry. The extension compensates with a fallback chain — apostrophe, possessive, hyphen, suffix variants (4 attempts by default), each one request, only for words that would otherwise return nothing.

<strong>Default base URL</strong> for the wuDict server is <code>http://127.0.0.1:6888</code>

<strong>Test connection</strong> verifies the server connection. 

<strong>Hold key</strong> 
You can pick the key that must be pressed to trigger to on-hover popup: ⌥ Option, ⌃ Control, ⇧ Shift, ⌘ Command on macOS, Alt/Ctrl/Shift elsewhere. 

<strong>Hover delay</strong> — defaults at 200 ms

<strong>Search opens</strong> — popup OR full wudict page

<strong>Dictionaries per lookup</strong> — 3
<strong>Entries per dictionary</strong> — 1
<strong>Selected Dictionaries</strong> — automatic when nothing is selected, or explicit

## Rankings

- #123,573 — Overall
- #61 — hover

## Permissions and access

### Permissions

- `storage`
- `contextMenus`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/wudict-hover)