diff --git a/CHANGELOG.md b/CHANGELOG.md
index ea17be12..2ea38d78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,13 @@ Many thanks to the following for contributing to this release:
 [@username](https://github.com/username)
 -->
 
+## Unreleased
+
+### Fixes
+
+- Fixed cramped plugin rows and wrapping header branding on mobile screens.
+
+
 ## Version 2.1.0
 
 ### Features
diff --git a/packages/web_ui/src/components/PluginClusterStatus.tsx b/packages/web_ui/src/components/PluginClusterStatus.tsx
index 570c1f1b..3797d4d0 100644
--- a/packages/web_ui/src/components/PluginClusterStatus.tsx
+++ b/packages/web_ui/src/components/PluginClusterStatus.tsx
@@ -172,10 +172,12 @@ export function PluginVersions(props: { status: PluginStatus, latest?: string })
 		{versions.map(version => {
 			const now = count(machine => machine.running === version);
 			const after = count(machine => machine.afterRestart === version);
-			return <div key={version}>
-				<Text>{version}</Text>
-				{props.latest === version && <Tag color="success" style={{ marginLeft: 6 }}>latest</Tag>}
-				<Text type="secondary" style={{ marginLeft: 12 }}>
+			return <div key={version} className="plugin-version">
+				<span>
+					<Text>{version}</Text>
+					{props.latest === version && <Tag color="success" style={{ marginLeft: 6 }}>latest</Tag>}
+				</span>
+				<Text type="secondary">
 					{plural(now, "machine")}{now !== after && ` → ${after} after restart`}
 				</Text>
 			</div>;
diff --git a/packages/web_ui/src/components/PluginsPage.tsx b/packages/web_ui/src/components/PluginsPage.tsx
index 52e7d85c..f7829ee2 100644
--- a/packages/web_ui/src/components/PluginsPage.tsx
+++ b/packages/web_ui/src/components/PluginsPage.tsx
@@ -1,5 +1,5 @@
 import React, { useContext, useEffect, useState } from "react";
-import { Space, Table, Tooltip, Typography } from "antd";
+import { Grid, Space, Table, Tooltip, Typography } from "antd";
 import CloseCircleFilled from "@ant-design/icons/CloseCircleFilled";
 
 import type { PluginWebApi } from "@clusterio/lib";
@@ -48,6 +48,8 @@ function WebError(props: { error: string }) {
 export default function PluginsPage() {
 	const control = useContext(ControlContext);
 	const account = useAccount();
+	const screens = Grid.useBreakpoint();
+	const isMobile = screens.md === false;
 	let [pluginList, setPluginList] = useState<PluginWebApi[]>([]);
 	const tableState = useTableQueryState<PluginRow>({
 		namespace: "plugin", defaultSortKey: "name",
@@ -96,6 +98,24 @@ export default function PluginsPage() {
 	const latestOf = (plugin: PluginRow) => (
 		plugin.status?.npmPackage ? latestVersions[plugin.status.npmPackage] : undefined
 	);
+	const versions = (plugin: PluginRow) => <>
+		{plugin.status
+			? <PluginVersions status={plugin.status} latest={latestOf(plugin)} />
+			: plugin.meta?.version}
+		{plugin.webError && <WebError error={plugin.webError} />}
+	</>;
+	const updateAction = (plugin: PluginRow) => (plugin.status
+		// Keep clicks on the update action from opening the plugin.
+		? <span onClick={event => { event.stopPropagation(); }}>
+			<PluginUpdateButton
+				status={plugin.status}
+				title={plugin.title}
+				latest={latestOf(plugin)}
+				installer={installer}
+			/>
+		</span>
+		: null
+	);
 
 	return <PageLayout nav={[{ name: "Plugins" }]}>
 		<PageHeader
@@ -115,14 +135,22 @@ export default function PluginsPage() {
 			</Space>}
 		/>
 		<Table
+			className="plugins-table"
+			tableLayout={isMobile ? "fixed" : "auto"}
 			columns={[
 				{
 					title: "Name",
 					key: "name",
 					className: "table-link-cell",
-					render: (_, plugin) => <Link to={pluginPath(plugin)} style={{ color: "inherit" }}>
-						{plugin.title}
-					</Link>,
+					render: (_, plugin) => <>
+						<Link to={pluginPath(plugin)} style={{ color: "inherit" }}>
+							{plugin.title}
+						</Link>
+						{isMobile && <div className="plugin-mobile-details">
+							<div>{versions(plugin)}</div>
+							{updateAction(plugin)}
+						</div>}
+					</>,
 					sorter: (a, b) => strcmp(a.title, b.title),
 					sortOrder: tableState.sortOrder("name"),
 					filteredValue: tableState.filteredValue("name"),
@@ -131,28 +159,14 @@ export default function PluginsPage() {
 				{
 					title: "Versions",
 					key: "versions",
-					render: (_, plugin) => <>
-						{plugin.status
-							? <PluginVersions status={plugin.status} latest={latestOf(plugin)} />
-							: plugin.meta?.version}
-						{plugin.webError && <WebError error={plugin.webError} />}
-					</>,
+					responsive: ["md"],
+					render: (_, plugin) => versions(plugin),
 				},
 				{
 					key: "actions",
 					align: "right",
-					render: (_, plugin) => (plugin.status
-						// Keep clicks on the update action from opening the plugin
-						? <span onClick={event => { event.stopPropagation(); }}>
-							<PluginUpdateButton
-								status={plugin.status}
-								title={plugin.title}
-								latest={latestOf(plugin)}
-								installer={installer}
-							/>
-						</span>
-						: null
-					),
+					responsive: ["md"],
+					render: (_, plugin) => updateAction(plugin),
 				},
 			]}
 			dataSource={tableContents}
diff --git a/packages/web_ui/src/components/SiteLayout.tsx b/packages/web_ui/src/components/SiteLayout.tsx
index 03e183e3..ed03e0ad 100644
--- a/packages/web_ui/src/components/SiteLayout.tsx
+++ b/packages/web_ui/src/components/SiteLayout.tsx
@@ -169,8 +169,10 @@ export default function SiteLayout() {
 	/>;
 
 	let accountMenu = <Dropdown menu={accountMenuProps} trigger={["click"]} placement="bottomRight">
-		<Button type="text" icon={<UserOutlined />} style={{ marginInlineStart: "auto" }}>
-			{account.name}
+		<Button type="text" icon={<UserOutlined />} style={{ marginInlineStart: "auto" }}
+			aria-label={`Account menu for ${account.name}`}
+		>
+			<span className="site-layout-account-name">{account.name}</span>
 		</Button>
 	</Dropdown>;
 
@@ -228,7 +230,7 @@ export default function SiteLayout() {
 			<Link to="/" style={{ display: "flex", alignItems: "center" }}>
 				<img src={logo} width={56} height={56} alt="Clusterio logo" />
 			</Link>
-			<Flex vertical justify="center">
+			<Flex vertical justify="center" className="site-layout-brand">
 				<Typography.Title level={4} style={{ margin: 0, lineHeight: 1.2 }}>Clusterio</Typography.Title>
 				<Tooltip title="View changelog" placement="right">
 					<Typography.Text
diff --git a/packages/web_ui/src/style.css b/packages/web_ui/src/style.css
index b478b8f7..0d8188c6 100644
--- a/packages/web_ui/src/style.css
+++ b/packages/web_ui/src/style.css
@@ -72,6 +72,38 @@ body {
 	background: #001529;
 }
 
+.site-layout-brand {
+	flex-shrink: 0;
+	white-space: nowrap;
+}
+
+@media (max-width: 767px) {
+	.site-layout-account-name {
+		display: none;
+	}
+
+	.plugins-table .table-link-cell > a {
+		font-weight: 600;
+		overflow-wrap: anywhere;
+	}
+}
+
+.plugin-mobile-details {
+	display: flex;
+	flex-direction: column;
+	align-items: flex-start;
+	gap: 12px;
+	margin-top: 8px;
+	overflow-wrap: anywhere;
+}
+
+.plugin-version {
+	display: flex;
+	flex-wrap: wrap;
+	align-items: baseline;
+	column-gap: 12px;
+}
+
 /* Keep the sidebar fixed in place (below the header) while content scrolls. */
 .site-layout-sider {
 	position: sticky;
diff --git a/test/manual/README.md b/test/manual/README.md
index 3b24dc23..977b1b4d 100644
--- a/test/manual/README.md
+++ b/test/manual/README.md
@@ -2,6 +2,21 @@
 
 This folder contains files used for performing manual tests that are non-trivial to automate.
 
+
+## Plugins page on small screens
+
+Use a cluster with several plugins, including one with different running and installed versions and one with a web load error.
+Compare the Plugins page at 390px and 1440px viewport widths, and check the 768px breakpoint.
+
+1. On phones, check that each row shows its name, versions, machine counts, status and update action vertically, without clipping or breaking ordinary words.
+2. Check that a long plugin name wraps and the header branding stays on one line.
+3. Search and sort by name, reload, and check that the selected filter and sort order remain applied.
+4. Open an update or restart checklist, then cancel it; update actions must not navigate to the plugin page.
+5. Open a plugin by its name and by clicking elsewhere in its row.
+6. Open the account menu using the user icon on mobile; the full account name should appear in the menu.
+7. On desktop, check that the name, versions and update action remain separate columns.
+
+
 ## Setup test mod
 
 Run `node packages/lib/dist/node/build_mod.js --source-dir test/manual/test_mod/ --output-dir mods/` to create the test mod.