datguypiko/Firefox-Mod-Blur v2.40

v2.40 - Tested on Firefox v149

on GitHub

📦 Latest Full Repository .zip download | 📦 Release v2.40.zip download

📦 Easy Install Script by Alan-Kuan download - instructions

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v2.40 • 25/03/2026 • Tested on Firefox v149.0

• Fixed rounded border around browsing window frame when using vertical tabs (Firefox rounds it by default).

• Added an option to enable the border with shadow as default Firefox behavior (Firefox has a small bug where dynamic on hover vertical tabs have a line visible when opened).
  Enable mod.enable.browser.border-and-shadow in about:config

• Fixed border in mod popout_bookmarks_bar_on_hover.css.
• Fixed Firefox uncentered tab close button in vertical mode.

• Added new Window Border frame mod with two different styles.
  Enable mod.main.window.frame.style-1 or mod.main.window.frame.style-2 in about:config

• Improved and corrected Vertical tabs size including pinned tabs.
  Added an option for more compact vertical tabs. Enable mod.compact.vertical.tabs in about:config

• Fix window control buttons min-max-close_buttons.css mod when window resized to minimal in vertical tabs mode.
• Add some of the missing mods to documentation for how to enable it. [Jump]
  Like mod.disable.scrollbar.in.vertical.tabs, mod.centered.tabs, mod.searchBox.focus.outline.enable, firefoxcss.disable.tab.preview.panel.fully etc.

v2.31 • 25/03/2026 • Tested on Firefox v149.0

• Fix Search bar buttons (left side) on hover. Firefox v149 combined cookies and connection security button into one button with now forcing "browser.urlbar.trustPanel.featureGate" in about:config.

If you want to always show the buttons you can enable "mod.search.info.buttons.show.always" in about:config

Changes made to userChrome.css, min-max-close_buttons.css, popout_bookmarks_bar_on_hover.css files since v2.31.