diff --git a/client/package.json b/client/package.json
index 1b4962f69..9ea16aab0 100644
--- a/client/package.json
+++ b/client/package.json
@@ -63,6 +63,7 @@
         "moment": "^2.24.0",
         "ng2-charts": "^2.3.0",
         "ng2-pdf-viewer": "^6.1.2",
+        "ngx-device-detector": "^1.4.4",
         "ngx-file-drop": "^8.0.8",
         "ngx-mat-select-search": "^2.1.2",
         "ngx-material-timepicker": "^5.5.1",
diff --git a/client/src/app/app-routing.module.ts b/client/src/app/app-routing.module.ts
index d823ee84b..0a3a3fa89 100644
--- a/client/src/app/app-routing.module.ts
+++ b/client/src/app/app-routing.module.ts
@@ -7,6 +7,7 @@ import { LoginPrivacyPolicyComponent } from './site/login/components/login-priva
 import { LoginWrapperComponent } from './site/login/components/login-wrapper/login-wrapper.component';
 import { ResetPasswordConfirmComponent } from './site/login/components/reset-password-confirm/reset-password-confirm.component';
 import { ResetPasswordComponent } from './site/login/components/reset-password/reset-password.component';
+import { UnsupportedBrowserComponent } from './site/login/components/unsupported-browser/unsupported-browser.component';
 
 /**
  * Global app routing
@@ -20,7 +21,8 @@ const routes: Routes = [
             { path: 'reset-password', component: ResetPasswordComponent },
             { path: 'reset-password-confirm', component: ResetPasswordConfirmComponent },
             { path: 'legalnotice', component: LoginLegalNoticeComponent },
-            { path: 'privacypolicy', component: LoginPrivacyPolicyComponent }
+            { path: 'privacypolicy', component: LoginPrivacyPolicyComponent },
+            { path: 'unsupported-browser', component: UnsupportedBrowserComponent }
         ]
     },
     {
diff --git a/client/src/app/site/login/components/login-mask/login-mask.component.ts b/client/src/app/site/login/components/login-mask/login-mask.component.ts
index 0df52349d..bb66fb0bf 100644
--- a/client/src/app/site/login/components/login-mask/login-mask.component.ts
+++ b/client/src/app/site/login/components/login-mask/login-mask.component.ts
@@ -6,6 +6,7 @@ import { ActivatedRoute, Router } from '@angular/router';
 
 import { TranslateService } from '@ngx-translate/core';
 import { Subscription } from 'rxjs';
+import { filter } from 'rxjs/operators';
 
 import { AuthService } from 'app/core/core-services/auth.service';
 import { OperatorService } from 'app/core/core-services/operator.service';
@@ -14,6 +15,7 @@ import { OverlayService } from 'app/core/ui-services/overlay.service';
 import { UserAuthType } from 'app/shared/models/users/user';
 import { ParentErrorStateMatcher } from 'app/shared/parent-error-state-matcher';
 import { BaseViewComponent } from 'app/site/base/base-view';
+import { BrowserSupportService } from '../../services/browser-support.service';
 
 /**
  * Login mask component.
@@ -31,6 +33,8 @@ export class LoginMaskComponent extends BaseViewComponent implements OnInit, OnD
      */
     public hide: boolean;
 
+    private checkBrowser = true;
+
     /**
      * Reference to the SnackBarEntry for the installation notice send by the server.
      */
@@ -82,7 +86,8 @@ export class LoginMaskComponent extends BaseViewComponent implements OnInit, OnD
         private route: ActivatedRoute,
         private formBuilder: FormBuilder,
         private loginDataService: LoginDataService,
-        private overlayService: OverlayService
+        private overlayService: OverlayService,
+        private browserSupport: BrowserSupportService
     ) {
         super(title, translate, matSnackBar);
         // Hide the spinner if the user is at `login-mask`
@@ -113,6 +118,14 @@ export class LoginMaskComponent extends BaseViewComponent implements OnInit, OnD
                 this.authService.redirectUser(user.id);
             }
         });
+
+        this.route.queryParams.pipe(filter(params => params.checkBrowser)).subscribe(params => {
+            this.checkBrowser = params.checkBrowser === 'true';
+        });
+
+        if (this.checkBrowser) {
+            this.checkDevice();
+        }
     }
 
     /**
@@ -122,6 +135,12 @@ export class LoginMaskComponent extends BaseViewComponent implements OnInit, OnD
         this.clearOperatorSubscription();
     }
 
+    private checkDevice(): void {
+        if (!this.browserSupport.isBrowserSupported()) {
+            this.router.navigate(['./unsupported-browser'], { relativeTo: this.route });
+        }
+    }
+
     /**
      * Clears the subscription to the operator.
      */
diff --git a/client/src/app/site/login/components/login-wrapper/login-wrapper.component.html b/client/src/app/site/login/components/login-wrapper/login-wrapper.component.html
index 4bc549666..6c493032f 100644
--- a/client/src/app/site/login/components/login-wrapper/login-wrapper.component.html
+++ b/client/src/app/site/login/components/login-wrapper/login-wrapper.component.html
@@ -1,7 +1,9 @@
 <!-- The actual form -->
 <header>
     <mat-toolbar class="login-logo-bar" color="primary">
-        <a routerLink="/login"><img src="assets/img/openslides-logo-dark.svg" alt="OpenSlides-logo" /></a>
+        <a routerLink="/login" [queryParams]="{ checkBrowser: false }"
+            ><img src="assets/img/openslides-logo-dark.svg" alt="OpenSlides-logo"
+        /></a>
     </mat-toolbar>
 </header>
 
diff --git a/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.html b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.html
new file mode 100644
index 000000000..618bc6ed8
--- /dev/null
+++ b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.html
@@ -0,0 +1,37 @@
+<main>
+    <h1 class="center spacer-top-20" *ngIf="!supported">
+        {{ 'Your browser is not supported by OpenSlides' | translate }}
+    </h1>
+    <h1 class="center spacer-top-20" *ngIf="supported">
+        {{ 'Congratuations! Your browser is supported by OpenSlides' | translate }}
+    </h1>
+
+    <mat-card class="os-card">
+        <div>
+            <span>
+                {{ 'Your browser' | translate }}: {{ currentBrowser }} ({{ 'version' | translate }}:
+                {{ browserVersion }})
+            </span>
+            <br />
+            <span *ngIf="!!supportedVersion">{{ 'Minimal required version for your browser' | translate }}: {{ supportedVersion }}</span>
+        </div>
+
+        <div class="spacer-top-20" *ngIf="!supported">
+            <span>{{
+                'Please update your browser or contact your system administration to have your browser updated for you.'
+                    | translate
+            }}</span>
+        </div>
+
+        <div class="spacer-top-20">
+            <span>
+                {{ 'OpenSlides recommends:' | translate }}
+                <ul>
+                    <li *ngFor="let browser of recommendedBrowsers">
+                        <a [href]="browser.url">{{ browser.name }}</a>
+                    </li>
+                </ul>
+            </span>
+        </div>
+    </mat-card>
+</main>
diff --git a/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.spec.ts b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.spec.ts
new file mode 100644
index 000000000..9057c1865
--- /dev/null
+++ b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.spec.ts
@@ -0,0 +1,27 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { E2EImportsModule } from 'e2e-imports.module';
+
+import { UnsupportedBrowserComponent } from './unsupported-browser.component';
+
+describe('UnsupportedBrowserComponent', () => {
+    let component: UnsupportedBrowserComponent;
+    let fixture: ComponentFixture<UnsupportedBrowserComponent>;
+
+    beforeEach(async(() => {
+        TestBed.configureTestingModule({
+            imports: [E2EImportsModule],
+            declarations: [UnsupportedBrowserComponent]
+        }).compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(UnsupportedBrowserComponent);
+        component = fixture.componentInstance;
+        fixture.detectChanges();
+    });
+
+    it('should create', () => {
+        expect(component).toBeTruthy();
+    });
+});
diff --git a/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.ts b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.ts
new file mode 100644
index 000000000..f4dfb0e11
--- /dev/null
+++ b/client/src/app/site/login/components/unsupported-browser/unsupported-browser.component.ts
@@ -0,0 +1,28 @@
+import { Component, OnInit } from '@angular/core';
+
+import { BrowserRecommendation, BrowserSupportService } from '../../services/browser-support.service';
+
+@Component({
+    selector: 'os-unsupported-browser',
+    templateUrl: './unsupported-browser.component.html'
+})
+export class UnsupportedBrowserComponent implements OnInit {
+    public supported: boolean;
+    public currentBrowser: string;
+    public browserVersion: string;
+    public supportedVersion: number;
+
+    public get recommendedBrowsers(): BrowserRecommendation[] {
+        return this.browserSupprt.recommendedBrowsers;
+    }
+
+    public constructor(private browserSupprt: BrowserSupportService) {}
+
+    public ngOnInit(): void {
+        const deviceInfo = this.browserSupprt.getDeviceInfo();
+        this.supported = this.browserSupprt.isBrowserSupported();
+        this.currentBrowser = deviceInfo.browser;
+        this.browserVersion = deviceInfo.browser_version;
+        this.supportedVersion = this.browserSupprt.getSupportedVersion(deviceInfo);
+    }
+}
diff --git a/client/src/app/site/login/login.module.ts b/client/src/app/site/login/login.module.ts
index 5b101d9ec..1975ec699 100644
--- a/client/src/app/site/login/login.module.ts
+++ b/client/src/app/site/login/login.module.ts
@@ -2,6 +2,8 @@ import { CommonModule } from '@angular/common';
 import { NgModule } from '@angular/core';
 import { RouterModule } from '@angular/router';
 
+import { DeviceDetectorModule } from 'ngx-device-detector';
+
 import { LoginLegalNoticeComponent } from './components/login-legal-notice/login-legal-notice.component';
 import { LoginMaskComponent } from './components/login-mask/login-mask.component';
 import { LoginPrivacyPolicyComponent } from './components/login-privacy-policy/login-privacy-policy.component';
@@ -9,16 +11,18 @@ import { LoginWrapperComponent } from './components/login-wrapper/login-wrapper.
 import { ResetPasswordConfirmComponent } from './components/reset-password-confirm/reset-password-confirm.component';
 import { ResetPasswordComponent } from './components/reset-password/reset-password.component';
 import { SharedModule } from '../../shared/shared.module';
+import { UnsupportedBrowserComponent } from './components/unsupported-browser/unsupported-browser.component';
 
 @NgModule({
-    imports: [CommonModule, RouterModule, SharedModule],
+    imports: [CommonModule, RouterModule, SharedModule, DeviceDetectorModule],
     declarations: [
         LoginWrapperComponent,
         ResetPasswordComponent,
         ResetPasswordConfirmComponent,
         LoginMaskComponent,
         LoginLegalNoticeComponent,
-        LoginPrivacyPolicyComponent
+        LoginPrivacyPolicyComponent,
+        UnsupportedBrowserComponent
     ]
 })
 export class LoginModule {}
diff --git a/client/src/app/site/login/services/browser-support.service.spec.ts b/client/src/app/site/login/services/browser-support.service.spec.ts
new file mode 100644
index 000000000..3106528e1
--- /dev/null
+++ b/client/src/app/site/login/services/browser-support.service.spec.ts
@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { BrowserSupportService } from './browser-support.service';
+
+describe('BrowserSupportService', () => {
+    let service: BrowserSupportService;
+
+    beforeEach(() => {
+        TestBed.configureTestingModule({});
+        service = TestBed.inject(BrowserSupportService);
+    });
+
+    it('should be created', () => {
+        expect(service).toBeTruthy();
+    });
+});
diff --git a/client/src/app/site/login/services/browser-support.service.ts b/client/src/app/site/login/services/browser-support.service.ts
new file mode 100644
index 000000000..b1a394738
--- /dev/null
+++ b/client/src/app/site/login/services/browser-support.service.ts
@@ -0,0 +1,63 @@
+import { Injectable } from '@angular/core';
+
+import { DeviceDetectorService, DeviceInfo } from 'ngx-device-detector';
+
+const SmallestSupportedBrowserVersion = {
+    Chrome: 81,
+    Safari: 13,
+    Firefox: 68,
+    Opera: 66,
+    'MS-Edge': 81,
+    'MS-Edge-Chromium': 81
+};
+
+const BrowserBlacklist = ['IE'];
+
+export interface BrowserRecommendation {
+    name: string;
+    url: string;
+}
+
+@Injectable({
+    providedIn: 'root'
+})
+export class BrowserSupportService {
+    public readonly recommendedBrowsers: BrowserRecommendation[] = [
+        {
+            name: 'Google Chrome',
+            url: 'https://www.google.com/chrome/'
+        },
+        {
+            name: 'Mozilla Firefox',
+            url: 'https://www.mozilla.org/firefox/'
+        }
+    ];
+
+    public constructor(private deviceService: DeviceDetectorService) {}
+
+    public getDeviceInfo(): DeviceInfo {
+        return this.deviceService.getDeviceInfo();
+    }
+
+    public getSupportedVersion(info: DeviceInfo): number {
+        return SmallestSupportedBrowserVersion[info.browser];
+    }
+
+    /**
+     * Detect the browser version and forward to an error page if the browser was too old
+     */
+    public isBrowserSupported(): boolean {
+        const deviceInfo = this.deviceService.getDeviceInfo();
+        const browser = deviceInfo.browser;
+        const version = parseInt(deviceInfo.browser_version, 10);
+
+        if (BrowserBlacklist.includes(browser)) {
+            return false;
+        } else if (!SmallestSupportedBrowserVersion[browser]) {
+            // if we don't know the browser, let's assume they are working
+            return true;
+        } else {
+            return version >= this.getSupportedVersion(deviceInfo);
+        }
+    }
+}