diff --git a/package.json b/package.json
index 84293516..79f36863 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "eslint-plugin-jsdoc": "^30.1.0",
     "eslint-plugin-prefer-arrow": "^1.2.2",
     "eslint-plugin-sonarjs": "^0.5.0",
-    "geckodriver": "^1.19.1",
+    "geckodriver": "^1.20.0",
     "jest": "^25.5.4",
     "jest-webextension-mock": "^3.6.1",
     "marked": "^1.1.1",
diff --git a/yarn.lock b/yarn.lock
index 240057eb..33d79ea4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1104,22 +1104,17 @@ addons-linter@2.1.0:
   optionalDependencies:
     fsevents "2.1.3"
 
-adm-zip@0.4.11:
-  version "0.4.11"
-  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.11.tgz#2aa54c84c4b01a9d0fb89bb11982a51f13e3d62a"
-  integrity sha512-L8vcjDTCOIJk7wFvmlEUN7AsSb8T+2JrdP7KINBjzr24TJ5Mwj590sLu3BC7zNZowvJWa/JtPmD8eJCzdtDWjA==
+adm-zip@0.4.16, adm-zip@~0.4.x:
+  version "0.4.16"
+  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.16.tgz#cf4c508fdffab02c269cbc7f471a875f05570365"
+  integrity sha512-TFi4HBKSGfIKsK5YCkKaaFG2m4PEDyViZmEwof3MTIgzimHLto6muaHVpbrljdIvIrFZzEq/p4nafOeLcYegrg==
 
-adm-zip@~0.4.x:
-  version "0.4.13"
-  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.13.tgz#597e2f8cc3672151e1307d3e95cddbc75672314a"
-  integrity sha512-fERNJX8sOXfel6qCBCMPvZLzENBEhZTzKqg6vrOW5pvoEaQuJhRU4ndTAh6lHOxn1I6jnz2NHra56ZODM751uw==
-
-agent-base@^4.3.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
-  integrity sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==
+agent-base@6:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-6.0.1.tgz#808007e4e5867decb0ab6ab2f928fbdb5a596db4"
+  integrity sha512-01q25QQDwLSsyfhrKbn8yuur+JNw0H+0Y4JiGIKd3z9aYk/w/2kxD/Upc+t2ZBBSUNff50VjPsSW2YxM8QYKVg==
   dependencies:
-    es6-promisify "^5.0.0"
+    debug "4"
 
 aggregate-error@^3.0.0:
   version "3.0.1"
@@ -1581,15 +1576,10 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
-bluebird@3.4.6:
-  version "3.4.6"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.6.tgz#01da8d821d87813d158967e743d5fe6c62cf8c0f"
-  integrity sha1-AdqNgh2HgT0ViWfnQ9X+bGLPjA8=
-
-bluebird@^3.5.5:
-  version "3.5.5"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
-  integrity sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==
+bluebird@3.7.2, bluebird@^3.5.5:
+  version "3.7.2"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
+  integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
 
 bluebird@~2.9.24:
   version "2.9.34"
@@ -1991,7 +1981,7 @@ chokidar@^3.4.1:
   optionalDependencies:
     fsevents "~2.1.2"
 
-chownr@^1.0.1, chownr@^1.1.1:
+chownr@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
   integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
@@ -2511,14 +2501,7 @@ debug@2, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9, d
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0:
-  version "3.2.6"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
-  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
-  dependencies:
-    ms "^2.1.1"
-
-debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
+debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
   integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
@@ -2921,23 +2904,11 @@ es6-promise@^2.0.1:
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"
   integrity sha1-lu258v2wGZWCKyY92KratnSBgbw=
 
-es6-promise@^4.0.3:
-  version "4.2.6"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.6.tgz#b685edd8258886365ea62b57d30de28fadcd974f"
-  integrity sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q==
-
 es6-promisify@6.1.1:
   version "6.1.1"
   resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-6.1.1.tgz#46837651b7b06bf6fff893d03f29393668d01621"
   integrity sha512-HBL8I3mIki5C1Cc9QjKUenHtnG0A5/xA8Q/AllRcfiwl2CZFXGK7ddBiCoRwAix4i2KxcQfjtIVcrVbB3vbmwg==
 
-es6-promisify@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
-  integrity sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=
-  dependencies:
-    es6-promise "^4.0.3"
-
 escape-goat@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-2.1.1.tgz#1b2dc77003676c457ec760b2dc68edb648188675"
@@ -3651,16 +3622,16 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-geckodriver@^1.19.1:
-  version "1.19.1"
-  resolved "https://registry.yarnpkg.com/geckodriver/-/geckodriver-1.19.1.tgz#556f95fd6451b553cec89f81f81abbefce10d6e5"
-  integrity sha512-xWL/+eEhQ6+t98rc1c+xVM3hshDJibXtZf9WJA3sshxq4k5L1PBwfmswyBmmlKUfBr4xuC256gLVC2RxFhiCsQ==
+geckodriver@^1.20.0:
+  version "1.20.0"
+  resolved "https://registry.yarnpkg.com/geckodriver/-/geckodriver-1.20.0.tgz#cd16edb177b88e31affcb54b18a238cae88950a7"
+  integrity sha512-5nVF4ixR+ZGhVsc4udnVihA9RmSlO6guPV1d2HqxYsgAOUNh0HfzxbzG7E49w4ilXq/CSu87x9yWvrsOstrADQ==
   dependencies:
-    adm-zip "0.4.11"
-    bluebird "3.4.6"
+    adm-zip "0.4.16"
+    bluebird "3.7.2"
     got "5.6.0"
-    https-proxy-agent "3.0.0"
-    tar "4.4.2"
+    https-proxy-agent "5.0.0"
+    tar "6.0.2"
 
 gensync@^1.0.0-beta.1:
   version "1.0.0-beta.1"
@@ -4050,13 +4021,13 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
   integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
-https-proxy-agent@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-3.0.0.tgz#0106efa5d63d6d6f3ab87c999fa4877a3fd1ff97"
-  integrity sha512-y4jAxNEihqvBI5F3SaO2rtsjIOnnNA8sEbuiP+UhJZJHeM2NRm6c09ax2tgqme+SgUUvjao2fJXF4h3D6Cb2HQ==
+https-proxy-agent@5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-5.0.0.tgz#e2a90542abb68a762e0a0850f6c9edadfd8506b2"
+  integrity sha512-EkYm5BcKUGiduxzSt3Eppko+PiNWNEpa4ySk9vTC6wDsQJW9rHSa+UhGNJoRYp7bz6Ht1eaRIa6QaJqO5rCFbA==
   dependencies:
-    agent-base "^4.3.0"
-    debug "^3.1.0"
+    agent-base "6"
+    debug "4"
 
 human-signals@^1.1.1:
   version "1.1.1"
@@ -5636,7 +5607,7 @@ minipass-pipeline@^1.2.2:
   dependencies:
     minipass "^3.0.0"
 
-minipass@^2.2.1, minipass@^2.2.4, minipass@^2.3.4:
+minipass@^2.2.1, minipass@^2.3.4:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
   integrity sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==
@@ -5651,7 +5622,7 @@ minipass@^3.0.0, minipass@^3.1.1:
   dependencies:
     yallist "^4.0.0"
 
-minizlib@^1.1.0, minizlib@^1.1.1:
+minizlib@^1.1.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
   integrity sha512-7+4oTUOWKg7AuL3vloEWekXY2/D20cevzsrNT2kGWm+39J9hGTCBv8VI5Pm5lXZ/o3/mdR4f8rflAPhnQb8mPA==
@@ -7875,18 +7846,17 @@ tar-stream@^1.5.0:
     to-buffer "^1.1.1"
     xtend "^4.0.0"
 
-tar@4.4.2:
-  version "4.4.2"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.2.tgz#60685211ba46b38847b1ae7ee1a24d744a2cd462"
-  integrity sha512-BfkE9CciGGgDsATqkikUHrQrraBCO+ke/1f6SFAEMnxyyfN9lxC+nW1NFWMpqH865DhHIy9vQi682gk1X7friw==
+tar@6.0.2, tar@^6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-6.0.2.tgz#5df17813468a6264ff14f766886c622b84ae2f39"
+  integrity sha512-Glo3jkRtPcvpDlAs/0+hozav78yoXKFr+c4wgw62NNMO3oo4AaJdCo21Uu7lcwr55h39W2XD1LMERc64wtbItg==
   dependencies:
-    chownr "^1.0.1"
-    fs-minipass "^1.2.5"
-    minipass "^2.2.4"
-    minizlib "^1.1.0"
-    mkdirp "^0.5.0"
-    safe-buffer "^5.1.2"
-    yallist "^3.0.2"
+    chownr "^2.0.0"
+    fs-minipass "^2.0.0"
+    minipass "^3.0.0"
+    minizlib "^2.1.0"
+    mkdirp "^1.0.3"
+    yallist "^4.0.0"
 
 tar@^4:
   version "4.4.8"
@@ -7901,18 +7871,6 @@ tar@^4:
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
-tar@^6.0.2:
-  version "6.0.2"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-6.0.2.tgz#5df17813468a6264ff14f766886c622b84ae2f39"
-  integrity sha512-Glo3jkRtPcvpDlAs/0+hozav78yoXKFr+c4wgw62NNMO3oo4AaJdCo21Uu7lcwr55h39W2XD1LMERc64wtbItg==
-  dependencies:
-    chownr "^2.0.0"
-    fs-minipass "^2.0.0"
-    minipass "^3.0.0"
-    minizlib "^2.1.0"
-    mkdirp "^1.0.3"
-    yallist "^4.0.0"
-
 term-size@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/term-size/-/term-size-2.1.1.tgz#f81ec25854af91a480d2f9d0c77ffcb26594ed1a"