Changes:

Media resources are now reported in the image plugin column (to be renamed media), having these reported in the other column does not make much sense. Typically, users of uMatrix would have the click-to-play setting for plug-ins enabled in their browser -- this has always been the recommended settings. Hence this means that if one allow media, this won't necessarily allow plugins, these will still be click-to-play. Plugins are slowly disappearing, and having a column strictly dedicated to plugins is wasteful, thus I decided to merge media and plugins.

Websocket connection attempts are reported in the xhr column.

There is now a badge on the per-site switches icon, which badge displays the number of switches which are currently turned on. This should help remind user to also check for these switches when trying to un-break a web page.

The assets management code has been refactored by importing code from uBlock Origin. Given the amount of work required and given the not-enough-time issue, all the hosts files you may have un-selected will be selected again. You will have to un-selected them again. Sorry, I just do not have the time for backward compatibility.

There is now a hybrid webextension version for uMatrix, see uMatrix.webext.zip below. The migration process is exactly the same as with uBlock Origin, see https://github.com/gorhill/uBlock/releases.

Closed as fixed:

Chromium

• Add Support for WebSocket Connections for Chromium
• UI glitch
  • Possibly a browser bug as the issue didn't exist until recent Chromium versions (57+). However I do not have time to investigate, the fix is to work around the weird issue observed in Chromium.

Firefox

• uBO broken on Firefox mozilla-central tip (fixed by @gijsk through pull request #2493)
• Incompatibility between ABP and uBO over FETCH (json)
• IPv6 password form submission fails

SeaMonkey

• Error when dealing with DOMParser.parseFromString()
• Toolbar icon gone in private browsing window

Core

• Images loaded via <img srcset="..."> are shown in 'other' column
• IPv6 rules are not saved across restarts and not properly applied
• Why not grey out three dots for better clarity?
  • The chosen solution is to display the number of currently turned on switches as a badge on the icon.