diff --git a/angular.json b/angular.json
index 5bf4787..7df165f 100644
--- a/angular.json
+++ b/angular.json
@@ -29,7 +29,8 @@
             ],
             "styles": [
               "src/styles/greenvironment-material-theme.scss",
-              "src/styles.sass"
+              "src/styles.sass",
+              "./node_modules/ngx-lightbox/lightbox.css"
             ],
             "scripts": []
           },
diff --git a/ngsw-config.json b/ngsw-config.json
index 4ddf1a7..4e9dd0a 100644
--- a/ngsw-config.json
+++ b/ngsw-config.json
@@ -21,6 +21,7 @@
       "resources": {
         "files": [
           "/assets/**",
+          "/data/**",
           "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
         ]
       }
diff --git a/package-lock.json b/package-lock.json
index e0e0d51..9a3fa2d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3136,9 +3136,9 @@
       }
     },
     "abbrev": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
-      "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
     },
     "accepts": {
       "version": "1.3.5",
@@ -6931,9 +6931,9 @@
       }
     },
     "globule": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.1.tgz",
-      "integrity": "sha512-g7QtgWF4uYSL5/dn71WxubOrS7JVGCnFPEnoeChJmBnyR9Mw8nGoEwOgJL/RC2Te0WhbsEUCejfH8SZNJ+adYQ==",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/globule/-/globule-1.3.0.tgz",
+      "integrity": "sha512-YlD4kdMqRCQHrhVdonet4TdRtv1/sZKepvoxNT4Nrhrp5HI8XFfc8kFlGlBn2myBo80aGp8Eft259mbcUJhgSg==",
       "requires": {
         "glob": "~7.1.1",
         "lodash": "~4.17.10",
@@ -9104,6 +9104,11 @@
         "opencollective-postinstall": "^2.0.2"
       }
     },
+    "ngx-lightbox": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ngx-lightbox/-/ngx-lightbox-2.1.1.tgz",
+      "integrity": "sha512-mI1hUo/DrhcTeWi/7AVusKfzLr5ySz+EFrOksNlCEiaQKVMqCZdUgj+7ruKDROF7dZcNkJL9Wf99yyiG2nhezQ=="
+    },
     "ngx-socket-io": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ngx-socket-io/-/ngx-socket-io-2.1.1.tgz",
@@ -9223,9 +9228,9 @@
       }
     },
     "node-sass": {
-      "version": "4.13.0",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.0.tgz",
-      "integrity": "sha512-W1XBrvoJ1dy7VsvTAS5q1V45lREbTlZQqFbiHb3R3OTTCma0XBtuG6xZ6Z4506nR4lmHPTqVRwxT6KgtWC97CA==",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.1.tgz",
+      "integrity": "sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==",
       "requires": {
         "async-foreach": "^0.1.3",
         "chalk": "^1.1.1",
@@ -10944,9 +10949,9 @@
       }
     },
     "rxjs": {
-      "version": "6.3.3",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.3.3.tgz",
-      "integrity": "sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==",
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
+      "integrity": "sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==",
       "requires": {
         "tslib": "^1.9.0"
       }
diff --git a/package.json b/package.json
index a12f028..4b76b7a 100644
--- a/package.json
+++ b/package.json
@@ -35,9 +35,10 @@
     "hammerjs": "^2.0.8",
     "js-sha512": "^0.8.0",
     "ngx-infinite-scroll": "^8.0.1",
+    "ngx-lightbox": "^2.1.1",
     "ngx-socket-io": "^2.1.1",
-    "node-sass": "^4.13.0",
-    "rxjs": "~6.3.3",
+    "node-sass": "^4.13.1",
+    "rxjs": "~6.5.4",
     "ts-md5": "^1.2.7",
     "zone.js": "^0.8.29"
   },
diff --git a/src/app/app.component.sass b/src/app/app.component.sass
index 663787d..e977ea0 100644
--- a/src/app/app.component.sass
+++ b/src/app/app.component.sass
@@ -11,10 +11,10 @@ $scrollbar-color-dark: transparent
 $scrollbar-thumb-color-dark: #aaa
 
 ::ng-deep body
-  scrollbar-color: $scrollbar-color $scrollbar-thumb-color
+  scrollbar-color: $scrollbar-thumb-color $scrollbar-color
   scrollbar-width: thin
   .dark-theme
-    scrollbar-color: $scrollbar-color-dark $scrollbar-thumb-color-dark
+    scrollbar-color: $scrollbar-thumb-color-dark $scrollbar-color-dark
 
 ::ng-deep ::-webkit-scrollbar
   width: 4px
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 9877d08..68b4402 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -63,6 +63,7 @@ import {MatNativeDateModule, MatProgressBarModule} from '@angular/material/';
 import {MatSnackBarModule} from '@angular/material/snack-bar';
 import { ServiceWorkerModule } from '@angular/service-worker';
 import { environment } from '../environments/environment';
+import {LightboxModule} from 'ngx-lightbox';
 
 
 const config: SocketIoConfig = {url: 'http://localhost:4444', options: {}};
@@ -147,6 +148,7 @@ const appRoutes: Routes = [
     MatDatepickerModule,
     MatSnackBarModule,
     MatProgressBarModule,
+    LightboxModule,
     ServiceWorkerModule.register('ngsw-worker.js', { enabled: environment.production }),
   ],
   entryComponents: [
diff --git a/src/app/components/profile/profile.component.html b/src/app/components/profile/profile.component.html
index 7d3b3d0..e427abc 100644
--- a/src/app/components/profile/profile.component.html
+++ b/src/app/components/profile/profile.component.html
@@ -3,11 +3,11 @@
     <!--on small screen-->
     <mat-toolbar id="toolbar" fxShow="true" fxHide.gt-sm="true">
       <mat-toolbar-row>
-        <div class="hover-box" matTooltip="upload new picture" *ngIf="ownProfile" (click)="openFileUploadDialog()">
+        <div class="hover-box profile-picture-container" matTooltip="upload new picture" *ngIf="ownProfile" (click)="openFileUploadDialog()">
           <img class="profile-picture" [src]="userProfile.profilePicture"/>
           <mat-icon id="icon">camera_alt</mat-icon>
         </div>
-        <div *ngIf="!ownProfile">
+        <div class="profile-picture-container" *ngIf="!ownProfile" (click)="openPfpLightbox()">
           <img class="profile-picture" [src]="userProfile.profilePicture"/>
         </div>
 
@@ -44,12 +44,12 @@
     <!--on big screen-->
     <mat-toolbar id="toolbar" fxShow="true" fxHide.lt-md="true">
       <mat-toolbar-row>
-        <div class="hover-box" matTooltip="upload new picture" *ngIf="ownProfile" (click)="openFileUploadDialog()">
+        <div class="hover-box profile-picture-container" matTooltip="upload new picture" *ngIf="ownProfile" (click)="openFileUploadDialog()">
           <img class="profile-picture" [src]="userProfile.profilePicture"/>
           <mat-icon id="icon">camera_alt</mat-icon>
         </div>
-        <div *ngIf="!ownProfile">
-          <img class="profile-picture" [src]="userProfile.profilePicture"/>
+        <div class="profile-picture-container" *ngIf="!ownProfile" (click)="openPfpLightbox()">
+          <img class="profile-picture" [src]="userProfile.profilePicture" />
         </div>
         <span id="username">{{userProfile.username}}</span>
         <span id="handle">@{{userProfile.handle}}</span>
diff --git a/src/app/components/profile/profile.component.sass b/src/app/components/profile/profile.component.sass
index 81986bd..3857047 100644
--- a/src/app/components/profile/profile.component.sass
+++ b/src/app/components/profile/profile.component.sass
@@ -54,8 +54,11 @@
   color: white
 
 $mat-card-header-size: 100px !default
-.hover-box
+
+.profile-picture-container
   cursor: pointer
+  z-index: 11
+.hover-box
   text-align: center
   display: flex
   justify-content: center
diff --git a/src/app/components/profile/profile.component.ts b/src/app/components/profile/profile.component.ts
index 9f92026..815ba80 100644
--- a/src/app/components/profile/profile.component.ts
+++ b/src/app/components/profile/profile.component.ts
@@ -9,6 +9,7 @@ import {HttpClient} from '@angular/common/http';
 import {SelfService} from '../../services/selfservice/self.service';
 import {MatDialog} from '@angular/material';
 import {DialogFileUploadComponent} from './fileUpload/fileUpload.component';
+import {Lightbox} from 'ngx-lightbox';
 
 @Component({
   selector: 'app-profile',
@@ -32,7 +33,7 @@ export class ProfileComponent implements OnInit {
     private requestService: RequestService,
     private data: DatasharingService,
     private profileService: ProfileService,
-    private selfService: SelfService,
+    private lightbox: Lightbox,
     public dialog: MatDialog) {
     router.events.forEach((event) => {
       // check if the user is on the profile page (of userY) and routes to the page of userY (e.g. his own page)
@@ -85,4 +86,15 @@ export class ProfileComponent implements OnInit {
       }
     });
   }
+
+  /**
+   * Opens a lightbox with the users profile picture
+   */
+  openPfpLightbox() {
+    this.lightbox.open([{
+      src: this.userProfile.profilePicture,
+      caption: `${this.userProfile.username}'s profile picture`,
+      thumb: this.userProfile.profilePicture,
+    }], 0, {disableScrolling: true});
+  }
 }