Modify address bar bug background

[ScoobyDI]

When you launch Zen and use the search engine, the background becomes blurred. However, when you're in a tab and click Add Tab, the previous tab is still visible in the background, which can lead to privacy issues when sharing your screen. This happens with the address bar in floating mode.

[dosubot[bot]]

Hi @ScoobyDI! I'm Dosu and I’m helping the desktop team.

This privacy issue with the floating address bar background has come up in related discussions. The blur effect is managed by CSS, specifically using selectors like #browser:has(#urlbar[open][zen-floating-urlbar="true"]) #tabbrowser-tabbox to blur the tab content when the URL bar is open, but this can unintentionally blur the tab bar as well, and may not fully obscure sensitive content behind the address bar when adding a new tab (source). The background uses the CSS variable --zen-toolbar-element-bg, which can cause visibility problems if content overlaps (source).

Users have suggested increasing the blur radius and adding a background color to improve privacy, for example by adding backdrop-filter: blur(50px) to the URL bar background in userChrome.css (source). There’s also feedback that a native solution would be better, as current workarounds can affect other UI elements or may not be sufficient in all scenarios (source).

If you’re seeing previous tab content remain visible when adding a new tab, you might want to experiment with stronger blur or background color via custom CSS, but a more robust fix would likely require changes to how the floating address bar background is handled natively.

To reply, just mention @dosu.

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[ScoobyDI]

Okay, thanks. I hope this can be improved in the future. Likewise, with the help of the first link, I was able to do what I wanted, as indicated. There's a small issue, but if you put the toolbar in compact mode, there's no problem, as far as I can see. [https://github.com//discussions/5135](half solution)
Thanks!