diff --git a/ui/desktop/app/services/origin.js b/ui/desktop/app/services/origin.js
index a5c1f3a0e..9ca0895f2 100644
--- a/ui/desktop/app/services/origin.js
+++ b/ui/desktop/app/services/origin.js
@@ -63,6 +63,10 @@ export default class OriginService extends Service {
       typeof origin === 'string'
     );
     try {
+      // Silently drop trailing slashes if present.
+      // This is important since API paths that will be appended to the origin
+      // will include preceeding slashes already.
+      origin = origin.replace(/\/*$/, '');
       this.adapter.host = origin;
       this.rendererOrigin = origin;
       if (origin !== (await this.mainOrigin)) {
diff --git a/ui/desktop/electron-app/yarn.lock b/ui/desktop/electron-app/yarn.lock
index 58a5e01a5..45dcdf0a4 100644
--- a/ui/desktop/electron-app/yarn.lock
+++ b/ui/desktop/electron-app/yarn.lock
@@ -3562,7 +3562,7 @@ xmlbuilder@^9.0.7:
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
   integrity sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=
 
-xmldom@0.1.x, xmldom@0.5.0:
+xmldom@0.1.x, xmldom@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.5.0.tgz#193cb96b84aa3486127ea6272c4596354cb4962e"
   integrity sha512-Foaj5FXVzgn7xFzsKeNIde9g6aFBxTPi37iwsno8QvApmtg7KYrr+OPyRHcJF7dud2a5nGRBXK3n0dL62Gf7PA==
diff --git a/ui/desktop/tests/unit/services/origin-test.js b/ui/desktop/tests/unit/services/origin-test.js
index 4d8703cf6..cc6cdfa69 100644
--- a/ui/desktop/tests/unit/services/origin-test.js
+++ b/ui/desktop/tests/unit/services/origin-test.js
@@ -24,4 +24,15 @@ module('Unit | Service | origin', function (hooks) {
       assert.equal(service.adapter.host, window.location.origin);
     });
   });
+
+  test('drops trailing slashes from origin on setOrigin', async function (assert) {
+    assert.expect(4);
+    sinon.stub(ipcService, 'invoke');
+    await service.setOrigin(`${window.location.origin}/`);
+    assert.equal(service.rendererOrigin, window.location.origin);
+    assert.equal(service.adapter.host, window.location.origin);
+    await service.setOrigin(`${window.location.origin}//////`);
+    assert.equal(service.rendererOrigin, window.location.origin);
+    assert.equal(service.adapter.host, window.location.origin);
+  });
 });
diff --git a/yarn.lock b/yarn.lock
index 035ecf3ed..6eb246d56 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7552,7 +7552,7 @@ debug@~4.1.0:
   dependencies:
     ms "^2.1.1"
 
-debuglog@*, debuglog@^1.0.1:
+debuglog@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debuglog/-/debuglog-1.0.1.tgz#aa24ffb9ac3df9a2351837cfb2d279360cd78492"
   integrity sha1-qiT/uaw9+aI1GDfPstJ5NgzXhJI=
@@ -12309,7 +12309,7 @@ import-lazy@^4.0.0:
   resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-4.0.0.tgz#e8eb627483a0a43da3c03f3e35548be5cb0cc153"
   integrity sha512-rKtvo6a868b5Hu3heneU+L4yEQ4jYKLtjpnPeUdK7h0yzXGmyBTypknlkCvHFBqfX9YlorEiMM6Dnq/5atfHkw==
 
-imurmurhash@*, imurmurhash@^0.1.4:
+imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
   integrity sha1-khi5srkoojixPcT7a21XbyMUU+o=
@@ -14007,11 +14007,6 @@ lodash._baseflatten@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash._baseindexof@*:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/lodash._baseindexof/-/lodash._baseindexof-3.1.0.tgz#fe52b53a1c6761e42618d654e4a25789ed61822c"
-  integrity sha1-/lK1OhxnYeQmGNZU5KJXie1hgiw=
-
 lodash._baseuniq@~4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/lodash._baseuniq/-/lodash._baseuniq-4.6.0.tgz#0ebb44e456814af7905c6212fa2c9b2d51b841e8"
@@ -14020,16 +14015,11 @@ lodash._baseuniq@~4.6.0:
     lodash._createset "~4.0.0"
     lodash._root "~3.0.0"
 
-lodash._bindcallback@*, lodash._bindcallback@^3.0.0:
+lodash._bindcallback@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/lodash._bindcallback/-/lodash._bindcallback-3.0.1.tgz#e531c27644cf8b57a99e17ed95b35c748789392e"
   integrity sha1-5THCdkTPi1epnhftlbNcdIeJOS4=
 
-lodash._cacheindexof@*:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/lodash._cacheindexof/-/lodash._cacheindexof-3.0.2.tgz#3dc69ac82498d2ee5e3ce56091bafd2adc7bde92"
-  integrity sha1-PcaayCSY0u5ePOVgkbr9Ktx73pI=
-
 lodash._createassigner@^3.0.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lodash._createassigner/-/lodash._createassigner-3.1.1.tgz#838a5bae2fdaca63ac22dee8e19fa4e6d6970b11"
@@ -14039,19 +14029,12 @@ lodash._createassigner@^3.0.0:
     lodash._isiterateecall "^3.0.0"
     lodash.restparam "^3.0.0"
 
-lodash._createcache@*:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/lodash._createcache/-/lodash._createcache-3.1.2.tgz#56d6a064017625e79ebca6b8018e17440bdcf093"
-  integrity sha1-VtagZAF2JeeevKa4AY4XRAvc8JM=
-  dependencies:
-    lodash._getnative "^3.0.0"
-
 lodash._createset@~4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/lodash._createset/-/lodash._createset-4.0.3.tgz#0f4659fbb09d75194fa9e2b88a6644d363c9fe26"
   integrity sha1-D0ZZ+7CddRlPqeK4imZE02PJ/iY=
 
-lodash._getnative@*, lodash._getnative@^3.0.0:
+lodash._getnative@^3.0.0:
   version "3.9.1"
   resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
   integrity sha1-VwvH3t5G1hzc3mh9ZdPuy6o6r/U=
@@ -14269,7 +14252,7 @@ lodash.pick@^4.4.0:
   resolved "https://registry.yarnpkg.com/lodash.pick/-/lodash.pick-4.4.0.tgz#52f05610fff9ded422611441ed1fc123a03001b3"
   integrity sha1-UvBWEP/53tQiYRRB7R/BI6AwAbM=
 
-lodash.restparam@*, lodash.restparam@^3.0.0:
+lodash.restparam@^3.0.0:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/lodash.restparam/-/lodash.restparam-3.6.1.tgz#936a4e309ef330a7645ed4145986c85ae5b20805"
   integrity sha1-k2pOMJ7zMKdkXtQUWYbIWuWyCAU=