diff --git a/chrome/navbar_tabs_oneliner.css b/chrome/navbar_tabs_oneliner.css
index b7bfa3f..c0570a5 100644
--- a/chrome/navbar_tabs_oneliner.css
+++ b/chrome/navbar_tabs_oneliner.css
@@ -6,13 +6,14 @@ See the above repository for updates as well as full license text. */
 /* Use page_action_buttons_on_hover.css to hide page-action-buttons to save more space for the address */
 
 /*
-urlbar_full_width.css is VERY MUCH recommended for Firefox 71+ because of new urlbar popup
+urlbar_popup_full_width.css is VERY MUCH recommended for Firefox 71+ because of new urlbar popup
 */
 
 /* Modify these to change relative widths or default height */
 #navigator-toolbox{
   --uc-navigationbar-width: 40vw;
   --uc-toolbar-height: 40px;
+  --uc-urlbar-min-width: none; /* Can set minimum width for focused urlbar here eg. 550px */
 }
 /* Override for other densities */
 :root[uidensity="compact"] #navigator-toolbox{ --uc-toolbar-height: 32px; }
@@ -55,4 +56,6 @@ urlbar_full_width.css is VERY MUCH recommended for Firefox 71+ because of new ur
 #urlbar-container:not(:hover) .urlbar-history-dropmarker{ margin-inline-start: -28px; }
 
 /* Fix customization view */
-#customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
\ No newline at end of file
+#customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
+
+#urlbar:focus-within{ min-width: var(--uc-urlbar-min-width,none) !important; }
\ No newline at end of file
diff --git a/chrome/navbar_tabs_responsive_oneliner.css b/chrome/navbar_tabs_responsive_oneliner.css
index 91c4446..b970a69 100644
--- a/chrome/navbar_tabs_responsive_oneliner.css
+++ b/chrome/navbar_tabs_responsive_oneliner.css
@@ -13,6 +13,7 @@ See the above repository for updates as well as full license text. */
   #navigator-toolbox{
     --uc-navigationbar-width: 40vw;
     --uc-toolbar-height: 40px;
+    --uc-urlbar-min-width: none; /* Can set minimum width for focused urlbar here eg. 550px */
   }
 /* prevent urlbar overflow on narrow windows */
 /* Dependent on how many items are in navigation toolbar ADJUST AS NEEDED */
@@ -52,6 +53,8 @@ See the above repository for updates as well as full license text. */
 
   /* Hide dropdown placeholder */
   #urlbar-container:not(:hover) .urlbar-history-dropmarker{ margin-inline-start: -28px; }
+  
+  #urlbar:focus-within{ min-width: var(--uc-urlbar-min-width,none) !important; }
 }
 /* Fix customization view */
 #customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
\ No newline at end of file
diff --git a/chrome/urlbar_popup_full_width.css b/chrome/urlbar_popup_full_width.css
index 25a0010..68757f5 100644
--- a/chrome/urlbar_popup_full_width.css
+++ b/chrome/urlbar_popup_full_width.css
@@ -14,6 +14,7 @@ See the above repository for updates as well as full license text. */
   box-shadow: inset 0 0 0 1px var(--lwt-toolbar-field-border-color, hsla(240,5%,5%,.25));
   background-color: var(--lwt-toolbar-field-background-color, hsla(0,0%,100%,.8));
   border-radius: var(--toolbarbutton-border-radius);
+  --uc-urlbar-min-width: none; /* navbar_tabs_oneliner.css compatibility */
 }
 
 #urlbar[focused]{ box-shadow: inset 0 0 0 1px var(--lwt-toolbar-field-border-focus, highlight); }