https://connect.mozilla.org/t5/discussions/white-line/m-p/140084#M56975 <P>Try typing&nbsp;<STRONG>about:config </STRONG>in the web-address bar, press&nbsp;<STRONG>ENTER</STRONG>, accept the warning shown.&nbsp; Then type&nbsp;<STRONG>nova</STRONG> in the search-box and <STRONG>double-click</STRONG> "<STRONG>browser.nova.enabled</STRONG>" and "true" should change to "<STRONG>false</STRONG>".</P><P>If that doesn't solve the issue, are you using a custom theme in the browser?</P> Wed, 30 Sep 2026 15:04:40 GMT dftf 2026-09-30T15:04:40Z https://connect.mozilla.org/t5/discussions/white-line/m-p/140069#M56967 <P><SPAN class=""><SPAN class=""><SPAN class="">I don't like the horizontal white line appearing under the Firefox toolbar when visiting websites in dark mode, for example Facebook, the latest version of dark mode is 157.0. Please restore it to the previous version.</SPAN></SPAN></SPAN></P> Wed, 30 Sep 2026 14:38:18 GMT https://connect.mozilla.org/t5/discussions/white-line/m-p/140069#M56967 pendielau 2026-09-30T14:38:18Z https://connect.mozilla.org/t5/discussions/white-line/m-p/140084#M56975 <P>Try typing&nbsp;<STRONG>about:config </STRONG>in the web-address bar, press&nbsp;<STRONG>ENTER</STRONG>, accept the warning shown.&nbsp; Then type&nbsp;<STRONG>nova</STRONG> in the search-box and <STRONG>double-click</STRONG> "<STRONG>browser.nova.enabled</STRONG>" and "true" should change to "<STRONG>false</STRONG>".</P><P>If that doesn't solve the issue, are you using a custom theme in the browser?</P> Wed, 30 Sep 2026 15:04:40 GMT https://connect.mozilla.org/t5/discussions/white-line/m-p/140084#M56975 dftf 2026-09-30T15:04:40Z https://connect.mozilla.org/t5/discussions/white-line/m-p/140187#M57040 <P><SPAN class=""><SPAN class=""><SPAN class="">wow this works thanks friend</SPAN></SPAN></SPAN></P> Wed, 30 Sep 2026 19:57:55 GMT https://connect.mozilla.org/t5/discussions/white-line/m-p/140187#M57040 pendielau 2026-09-30T19:57:55Z