1.58.1b4

• Add isodate as available placeholder for auto-comment
• Improve trusted-replace-outbound-text scriptlet
• Classify generic cosmetic filters with comma as highly generic
• Raise max buffer size for response body filtering
• Trim end of class tokens in generic cosmetic filtering's surveyor
• Improve trusted-set-cookie scriptlet

---

Commits to master since this release

To install the developer build:

• Firefox: Click uBlock0_1.58.1b4.firefox.signed.xpi
  • uBO works best on Firefox.
• Chromium: Install from the Chrome Web Store (CWS): https://chrome.google.com/webstore/detail/ublock-origin-dev-build/cgbcahbpdhpcegmbfconppldiemgcoii.
• Thunderbird: Download uBlock0_1.58.1b4.thunderbird.xpi, then drag-n-drop it into Thunderbird's Add-ons Manager pane (Thunderbird 91+ required)
• Node.js: Import from npm, or download and unzip uBlock0_1.58.1b4.npm.tgz.

1.58.1b3

• Improve trusted-replace-outbound-text scriptlet
• Classify generic cosmetic filters with comma as highly generic
• Raise max buffer size for response body filtering
• Trim end of class tokens in generic cosmetic filtering's surveyor
• Improve trusted-set-cookie scriptlet

---

Commits to master since this release

To install the developer build:

• Firefox: Click uBlock0_1.58.1b3.firefox.signed.xpi
  • uBO works best on Firefox.
• Chromium: Install from the Chrome Web Store (CWS): https://chrome.google.com/webstore/detail/ublock-origin-dev-build/cgbcahbpdhpcegmbfconppldiemgcoii.
• Thunderbird: Download uBlock0_1.58.1b3.thunderbird.xpi, then drag-n-drop it into Thunderbird's Add-ons Manager pane (Thunderbird 91+ required)
• Node.js: Import from npm, or download and unzip uBlock0_1.58.1b3.npm.tgz.

1.58.1b2

• Classify generic cosmetic filters with comma as highly generic
• Raise max buffer size for response body filtering
• Trim end of class tokens in generic cosmetic filtering's surveyor
• Improve trusted-set-cookie scriptlet

---

Commits to master since this release

To install the developer build:

• Firefox: Click uBlock0_1.58.1b2.firefox.signed.xpi
  • uBO works best on Firefox.
• Chromium: Install from the Chrome Web Store (CWS): https://chrome.google.com/webstore/detail/ublock-origin-dev-build/cgbcahbpdhpcegmbfconppldiemgcoii.
• Thunderbird: Download uBlock0_1.58.1b2.thunderbird.xpi, then drag-n-drop it into Thunderbird's Add-ons Manager pane (Thunderbird 91+ required)
• Node.js: Import from npm, or download and unzip uBlock0_1.58.1b2.npm.tgz.

1.58.1b1

• Trim end of class tokens in generic cosmetic filtering's surveyor
• Improve trusted-set-cookie scriptlet

---

Commits to master since this release

To install the developer build:

• Firefox: Click uBlock0_1.58.1b1.firefox.signed.xpi
  • uBO works best on Firefox.
• Chromium: Install from the Chrome Web Store (CWS): https://chrome.google.com/webstore/detail/ublock-origin-dev-build/cgbcahbpdhpcegmbfconppldiemgcoii.
• Thunderbird: Download uBlock0_1.58.1b1.thunderbird.xpi, then drag-n-drop it into Thunderbird's Add-ons Manager pane (Thunderbird 91+ required)
• Node.js: Import from npm, or download and unzip uBlock0_1.58.1b1.npm.tgz.

1.58.0

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.58.0.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Install from the Chrome store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

Fixes / changes

• Fallback to requestAnimationFrame when requestIdleCallback is not available
• Improve trusted-click-element scriptlet
• Replace EasyDutch with AdGuard Dutch
• Add checksum validation when loading trie buffers in selfie
• Catch exceptions in API calls for the sake of old Chromium versions
• Add accept/reject to set-local-storage-item (by @ryanbr)
• Use raw string for regex patterns in python scripts
• Improve noeval-if scriptlet
• Improve trusted-set-local-storage-item scriptlet
• Fix potential corruption when reading serialized data
• Improve remove-[attr|class] scriptlets
• Improve dashboard layout at high zoom factor
• Add a console pane to the logger
• Improve spoof-css scriptlet
• Fix bad date computation in auto-comment feature
• Fix regression breaking import of file:// lists
• Add trusted-replace-outbound-text scriptlet
• Improve [trusted-]set-cookie scriptlets

1.57.2

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.57.2.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Submission pending
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

This is an emergency release to fix an issue causing differential updates to fail. The issue primarily affected Firefox because of uBO's use of indexedDB prior to 1.57.0. The issue did not affect full update of filter lists even though the asset viewer would show old versions of those lists (internally uBO compiles lists and would still correctly compile from lists fetched by full updater).

This release also contains translation work, so I will also publish an update to Chrome Web Store despite the issue not affecting Chromium-based browsers.

Fixes / changes

• Fix stray lists in redesigned cache storage

1.57.0

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.57.0.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Install from the Chrome store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

Fixes / changes

• Do not block large media resources when loaded as top-level document
• Properly manage cache storage regarding managed user filters
• Improve [trusted-]set-cookie scriptlets
• Fixed Belgian and Nepali flags for Windows Chromium users (by @DandelionSprout)
• Mind that tabs.sendMessage can throw
• Improve set-cookie scriptlet
• Append wildcard character only when filter starts & ends with /
• Fix failure to create popup logger window sometimes
• Improve json-prune-related scriptlets
• Support maximizing editor to viewport size
• Add advanced setting to force popup panel orientation
• Add checkboxes to "My filters" pane
• Assume UTF-8 when no encoding can be looked up
• Fix issue with "My filters" pane on mobile
• Support aborting "Pick" mode in element picker
• Remove sections with no lists in "Filter lists" pane
• Add "Social widgets", "Cookie notices" sections in "Filter lists" pane
• No longer disable generic cosmetic filters by default on mobile
• Improve spoof-css scriptlet
• Make asset updater compatible with non-persistent background page
• Move dragbar to the top of element picker dialog
  • Move "Quit" button to top bar in element picker
• Add advanced setting requestStatsDisabled
• First lookup matching stock lists when importing URLs
• Reset filter lists in worker when creating filters via "Block element"
• Remove trusted-source requirement when using badfilter
• Redesign cache storage
• Don't match network filter-derived regexes against non-network URIs
• Remove obsolete trusted directives
• Support logging details of calls to json-prune-fetch-response
• Escape special whitespace characters in attribute values

1.56.0

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.56.0.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Install from the Chrome store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

Fixes / changes

• Mind that multiple uritransform may apply to a single request
• Fix incorrect built-in filtering expression in logger
• Fix improper invalidation of valid uritransform exception filters
• Improve prevent-addEventListener scriptlet
• Fix Chartbeat flicker control div's (by @ryanbr)
• Fix potential exfiltration of browsing history by a rogue list author through permissions=
• Ignore event handler-related attributes in set-attr scriptlet (suggested by @distinctmondaylilac)
• Fix potential exfiltration of browsing history by a rogue list author through csp= (reported by @distinctmondaylilac)
• Output scriptlet logging information to the logger
• Fix decompiling of scriptlet parameters
• Add support for extraMatch in trusted-click-element scriptlet
• Remove minimum height constraint from "My filters" pane
• Unregister all scriptlets when disabling uBO on a specific site
• Allow uritransform to process the hash part of a URL
• Remember presentation state of "My rules" pane
• Fix improperly assembled !#include sublists
• Mark procedural filters with pseudo-elements selector as invalid
• Prevent access to picker when "My filters" is not enabled
• Provide visual feedback when applying changes in "Filter lists" pane
• Empty query parameters must still use =
• Add support to toggle no-scripting switch with keyboard shortcut
• Do not exceed rate-limited calls to handlerBehaviorChanged()
• Shield some code paths against potentially tampered global properties (in scriptlets)
• Do not prevent applying changes when lists are updating
• Add elements vararg to prevent-addEventListener scriptlet
• Do not use tab character as field separator (in logger)
• Prevent :others() from hiding html tag

1.55.0

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.55.0.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Install from the Chrome store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

Fixes / changes

• Mind drop events in filter expression field of logger
• Improve xml-prune scriptlet
• Fix message entries overflowing in logger
• Add support for application/x-javascript in replace= option
• Extend support for differential updates to imported lists
• Add detection of mismatched !#if-!#endif in linter
• Support links to update lists which are differential update-friendly
• Remove "Purge all caches" button from "Filter lists" pane
• Add support for all list token in updater-link feature
• Fix logging of broad exception filter #@#+js()
• Improve no-xhr-if scriptlet
• Ensure cache storage backend is selected before access
• Fix popup panel rendering when embedded in logger
• Add visual hint in support information re. differential update
• Remove obsolete web accessible resources
• Rename urltransform to uritransform
• Vertically expand/collapse in steps in dom inspector
• Reset the DOM inspector when URL in top context changes
• Support shadow-piercing combinator >>> in trusted-click-element
• Isolate DOM inspector layers from page context
• Refactoring: Replace DOM events with broadcast channels
• Support non-default sticky lists
• Add enableLazyLoad function (by @spazmodius )
• Change frequency of save-to-storage blocking stats
• Improve prevent-fetch scriptlet
• Catch cases of ! Expires: field with no value

1.54.0

Commits to master since this release
Commits since last release

To install the stable build:

• Firefox: Click uBlock0_1.54.0.firefox.signed.xpi
  uBO works best on Firefox.
• Chromium: Install from the Chrome store: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm
• Edge: Install from Microsoft Store: https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak
  The Microsoft Store version of uBO is published by Nicole Rolls
• Opera: Install from Opera addons: https://addons.opera.com/en/extensions/details/ublock/

---

New

Differential update of filter lists, as a result of discussions at AdguardTeam/FiltersCompiler#192. Resulting spec is here.

The goal is to NOT be ranked among the "most popular projects" by bandwidth usage (as per jsDelivr's public stats):

It is expected that differential updates will lower both requests and bandwidth usage.

IMPORTANT: To benefit the much shorter update period enabled by differential updates, you must let uBO auto-update the filter lists. Forcing a manual update will prevent differential updates until the next time a list auto-update.

Fixes / changes

• Enable path for native has() selector in Firefox
• Allow scriptlets to be injected in about:blank
• Fix faulty as vararg in set-constant scriptlet
• Add support to redirect to noop.json
• More improvements to the google-ima shim script (by @kzar)
• All exceptions filters are exempt from requiring a trusted source
• Add trusted-set-session-storage-item scriptlet
• Allow the use of quotes in set-cookie scriptlet
• Allow the use of quotes in set-(local|session)-storage-item
• Add ability to trigger cookie removal on specific events
• Ensure CSSTree does not hold a reference onto last parsed string
• Lower minimum Expires value to 4h
• Properly reset needle length in unserialized buffer
• Add additional flags to regional lists (by @DandelionSprout)
• Harden scriptlets which need to serialize function code into string
• Reset g regexes before use in rmnt/rpnt scriptlets
• Apply response filtering according to mime type
• Add t/f to set-cookie (by @ryanbr)
• Have urltransform= use the same syntax as replace=
• Implement network filter option replace= (Firefox only because filterResponseData)
• Prevent evaluating the SNFE until fully loaded
• Add support for differential update of filter lists