Quicksloth Sticky Widget – Fixed Widgets, Blocks & Sticky Sidebar

Activate this plugin before you delete Fixed Widget: deleting it removes its settings, which this plugin imports on activation (the widgets and blocks you marked stay sticky either way). Then deactivate it on the Plugins page; until then this plugin moves nothing. Not imported: “logged_in_req” (sticky only for logged-in users) and “Improved version” ( position: sticky is always tried first). The stop at the theme footer starts off, as before. While pinned, elements also get the FixedWidget__fixed_widget__pinned class, so your CSS keeps working. This plugin is not affiliated with Fixed Widget or its authors.

Most block themes have no widget areas. Under Appearance → Editor , open the template or template part that holds your sidebar, select the block to keep in view (for example a Group block inside a column) and turn on Sticky in its Sticky panel.

Check these:

• It is taller than the window (pinned, it would hide its own end; when you are logged in, the WordPress toolbar counts too): make it shorter or split it in two.
• The window is below Minimum screen width or Minimum screen height , or its device (Desktop, Tablet, Phone) is unticked under Appearance → Sticky Widget .
• Fixed Widget is still active: deactivate it on the Plugins page.
• A caching plugin serves an old copy of the page: clear its cache after saving a widget or the settings.

Yes; clear the cache after changing widgets or settings. We tested LiteSpeed Cache 7.9.2 with JavaScript and CSS minified and combined and Load JS Deferred set to Deferred: sticky elements work as without it.

With Load JS Deferred set to Delayed, scripts run only after the first interaction, so nothing is sticky until the visitor moves the mouse over the page, uses the wheel, a key or a touch. If a widget must be sticky before that, add two lines to JS Deferred / Delayed Excludes : quicksloth-sticky-widget and qsswConfig (the second keeps your top margin and other settings; tested with LiteSpeed Cache 7.9.3). Other plugins with a similar “delay JavaScript” feature can behave the same way; only LiteSpeed Cache is tested.

It adds one script of about 5 KB compressed, no CSS and no other request, only on pages with a sticky element. In our Lighthouse test on mobile the score was the same with and without the plugin, 99 on Twenty Twenty-Five and 98 on Astra, with Total Blocking Time 3 to 6 ms higher.

Under Appearance → Sticky Widget raise Layer (z-index) (50 by default) when the element goes behind the content, lower it when it covers a fixed header; with a fixed header also set Margin top to its height.

The plugin is ready for translation ( .pot file in languages/ ). Translations into Italian, German, Spanish, French, Portuguese (Brazil) and Dutch were drafted with AI (Claude) and submitted to translate.wordpress.org, where volunteer editors review them before they reach your site. Until a language is approved there, the texts are shown in English.

After adding content with JavaScript (infinite scroll, tabs), call window.qssw.refresh() to find and measure the sticky elements again. Classes: qssw-sticky on an element to keep in view, qssw-stop on an element it must not cover, qssw-is-pinned while it is pinned.