diff --git a/chrome/content/zotero/components/virtualized-table.jsx b/chrome/content/zotero/components/virtualized-table.jsx
index da00968d5d..3f8ac5f230 100644
--- a/chrome/content/zotero/components/virtualized-table.jsx
+++ b/chrome/content/zotero/components/virtualized-table.jsx
@@ -1602,10 +1602,6 @@ var Columns = class {
 		this._virtualizedTable.props.storeColumnPrefs(prefs);
 	}
 
-	// Injects extra width into the first column if that column has
-	// `staticWidth` or `minWidth` configured, in order to accommodate space for
-	// the item type icon and the chevron.The original width is restored if the
-	// column is reordered to a different position.
 	_adjustColumnWidths = () => {
 		if (!this._virtualizedTable.props.firstColumnExtraWidth) {
 			return;
@@ -1624,55 +1620,6 @@ var Columns = class {
 		});
 	};
 
-	// Measures the current width of the table header and redistributes the
-	// available width among visible columns. Static- and fixed-width columns
-	// preserve their stored width, while the remaining space is distributed
-	// proportionally among other columns based on each column's width property.
-	// This resolves an issue where the flex model causes slight column
-	// misalignment (see #4993).
-	_redistributeColumnWidths = () => {
-		let header = document.querySelector(`#${this._virtualizedTable.props.id} .virtualized-table-header`);
-		let headerRect = header.getBoundingClientRect();
-		const headerPadding = parseInt(window.getComputedStyle(header).paddingLeft) + parseInt(window.getComputedStyle(header).paddingRight);
-		const headerWidth = headerRect.width - headerPadding;
-		let nextVisibleColumns = this._columns.filter(c => !c.hidden);
-
-		// Normalize widths. Calculate widths for columns without a set value using the flex property.
-		nextVisibleColumns = nextVisibleColumns.map((column) => {
-			let width = parseFloat(column.width);
-			if (isNaN(width)) {
-				width = Math.max((headerWidth / nextVisibleColumns.length * (column.flex || 1)), column.minWidth || COLUMN_MIN_WIDTH);
-			}
-			return { ...column, width };
-		});
-
-		// Calculate the combined width of fixed and static columns, then subtract it from the header width to determine the available space.
-		let fixedColumns = nextVisibleColumns.filter(c => c.staticWidth || c.fixedWidth);
-		let fixedColumnsTotalWidth = fixedColumns.reduce((accumulator, column) => accumulator += column.width, 0);
-		let availableWidth = Math.max(headerWidth - fixedColumnsTotalWidth, 1); // safety catch for extreme case where fixed columns take up all the space
-
-		// Calculate the total width of the other columns
-		let otherColumns = nextVisibleColumns.filter(c => !c.staticWidth && !c.fixedWidth);
-		let otherColumnsTotalWidth = otherColumns.reduce((accumulator, column) => accumulator += column.width, 0);
-		
-		// Calculate the fraction of space each non-fixed column should occupy. This iterates over all visible columns to keep the indexes, but calculations for fixed and static columns will be discarded
-		let otherColumnsFractions = nextVisibleColumns.map(column => column.width / otherColumnsTotalWidth);
-		let resizeData = {};
-
-		for (let i = 0; i < nextVisibleColumns.length; i++) {
-			let column = nextVisibleColumns[i];
-			if (column.staticWidth || column.fixedWidth) {
-				resizeData[column.dataKey] = column.width;
-			}
-			else {
-				const width = availableWidth * otherColumnsFractions[i];
-				resizeData[column.dataKey] = width;
-			}
-		}
-
-		this.onResize(resizeData);
-	};
-
 	/**
 	 * Programatically sets the injected CSS width rules for each column.
 	 * This is necessary for performance reasons
@@ -1724,7 +1671,7 @@ var Columns = class {
 		});
 
 		this._adjustColumnWidths();
-		this.onResize(Object.fromEntries(this._columns.filter(c => !c.hidden).map(c => [c.dataKey, c.width])));
+		this.onResize(Object.fromEntries(this._columns.map(c => [c.dataKey, c.width])));
 
 		let prefs = this._getPrefs();
 		// reassign columns their ordinal values and set the prefs
@@ -1754,7 +1701,7 @@ var Columns = class {
 		}
 		this._columns.sort((a, b) => a.ordinal - b.ordinal);
 		this._adjustColumnWidths();
-		this.onResize(Object.fromEntries(this._columns.filter(c => !c.hidden).map(c => [c.dataKey, c.width])));
+		this.onResize(Object.fromEntries(this._columns.map(c => [c.dataKey, c.width])));
 		this._storePrefs(prefs);
 		this._updateVirtualizedTable();
 	}
@@ -1767,9 +1714,8 @@ var Columns = class {
 		if (prefs[column.dataKey]) {
 			prefs[column.dataKey].hidden = column.hidden;
 		}
-
 		this._adjustColumnWidths();
-		this._redistributeColumnWidths();
+		this.onResize(Object.fromEntries(this._columns.map(c => [c.dataKey, c.width])));
 		this._storePrefs(prefs);
 		this._updateVirtualizedTable();
 	}
diff --git a/chrome/content/zotero/itemTreeColumns.jsx b/chrome/content/zotero/itemTreeColumns.jsx
index 6da8c54553..20c185eece 100644
--- a/chrome/content/zotero/itemTreeColumns.jsx
+++ b/chrome/content/zotero/itemTreeColumns.jsx
@@ -78,8 +78,7 @@ const COLUMNS = [
 		dataKey: "itemType",
 		label: "zotero.items.itemType",
 		showInColumnPicker: true,
-		width: "56",
-		staticWidth: true,
+		width: "40",
 		zoteroPersist: ["width", "hidden", "sortDirection"]
 	},
 	{