diff --git a/add-on/manifest.firefox.json b/add-on/manifest.firefox.json
index 59a279c11..0865fb696 100644
--- a/add-on/manifest.firefox.json
+++ b/add-on/manifest.firefox.json
@@ -8,7 +8,7 @@
   "applications": {
     "gecko": {
       "id": "ipfs-firefox-addon@lidel.org",
-      "strict_min_version": "58.0"
+      "strict_min_version": "59.0"
     }
   },
   "page_action": {
@@ -21,18 +21,33 @@
   "protocol_handlers": [
     {
       "protocol": "web+dweb",
-      "name": "IPFS Add-On: DWEB protocol handler",
-      "uriTemplate": "https://ipfs.io/%s"
+      "name": "IPFS Companion: DWEB Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
     },
     {
       "protocol": "web+ipns",
-      "name": "IPFS Add-On: IPNS protocol handler",
-      "uriTemplate": "https://ipfs.io/%s"
+      "name": "IPFS Companion: IPNS Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
     },
     {
       "protocol": "web+ipfs",
-      "name": "IPFS Add-On: IPFS protocol handler",
-      "uriTemplate": "https://ipfs.io/%s"
+      "name": "IPFS Companion: IPFS Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
+    },
+    {
+      "protocol": "dweb",
+      "name": "IPFS Companion: DWEB Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
+    },
+    {
+      "protocol": "ipns",
+      "name": "IPFS Companion: IPNS Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
+    },
+    {
+      "protocol": "ipfs",
+      "name": "IPFS Companion: IPFS Protocol Handler",
+      "uriTemplate": "https://ipfs.io/#redirect/%s"
     }
   ]
 }
diff --git a/add-on/src/lib/ipfs-request.js b/add-on/src/lib/ipfs-request.js
index 8846cfb31..319c028fa 100644
--- a/add-on/src/lib/ipfs-request.js
+++ b/add-on/src/lib/ipfs-request.js
@@ -27,9 +27,9 @@ function createRequestModifier (getState, dnsLink, ipfsPathValidator) {
     }
 
     // handler for protocol_handlers from manifest.json
-    if (webPlusProtocolRequest(request)) {
+    if (redirectingProtocolRequest(request)) {
       // fix path passed via custom protocol
-      const fix = normalizedWebPlusRequest(request, state.pubGwURLString)
+      const fix = normalizedRedirectingProtocolRequest(request, state.pubGwURLString)
       if (fix) {
         return fix
       }
@@ -71,28 +71,40 @@ function redirectToGateway (requestUrl, state) {
   return { redirectUrl: url.toString() }
 }
 
-// PROTOCOL HANDLERS: web+ in Firefox (protocol_handlers from manifest.json)
+// REDIRECT-BASED PROTOCOL HANDLERS
+// This API is available only Firefox (protocol_handlers from manifest.json)
+// Background: https://github.com/ipfs-shipyard/ipfs-companion/issues/164#issuecomment-282513891
+// Notes on removal of web+ in Firefox 59: https://github.com/ipfs-shipyard/ipfs-companion/issues/164#issuecomment-355708883
 // ===================================================================
 
-const webPlusProtocolHandler = 'https://ipfs.io/web%2B'
+// This is just a placeholder that we had to provide -- removed in normalizedRedirectingProtocolRequest()
+const redirectingProtocolHandler = 'https://ipfs.io/#redirect/'
 
-function webPlusProtocolRequest (request) {
-  return request.url.startsWith(webPlusProtocolHandler)
+function redirectingProtocolRequest (request) {
+  return request.url.startsWith(redirectingProtocolHandler)
 }
 
-function normalizedWebPlusRequest (request, pubGwUrl) {
-  const oldPath = decodeURIComponent(new URL(request.url).pathname)
+function normalizedRedirectingProtocolRequest (request, pubGwUrl) {
+  const oldPath = decodeURIComponent(new URL(request.url).hash)
   let path = oldPath
-  path = path.replace(/^\/web\+dweb:\//i, '/') // web+dweb:/ipfs/Qm → /ipfs/Qm
-  path = path.replace(/^\/web\+ipfs:\/\//i, '/ipfs/') // web+ipfs://Qm → /ipfs/Qm
-  path = path.replace(/^\/web\+ipns:\/\//i, '/ipns/') // web+ipns://Qm → /ipns/Qm
+  // prefixed (Firefox < 59)
+  path = path.replace(/^#redirect\/web\+dweb:\//i, '/') // web+dweb:/ipfs/Qm → /ipfs/Qm
+  path = path.replace(/^#redirect\/web\+ipfs:\/\//i, '/ipfs/') // web+ipfs://Qm → /ipfs/Qm
+  path = path.replace(/^#redirect\/web\+ipns:\/\//i, '/ipns/') // web+ipns://Qm → /ipns/Qm
+  // without prefix (Firefox >= 59)
+  path = path.replace(/^#redirect\/dweb:\//i, '/') // dweb:/ipfs/Qm → /ipfs/Qm
+  path = path.replace(/^#redirect\/ipfs:\/\//i, '/ipfs/') // ipfs://Qm → /ipfs/Qm
+  path = path.replace(/^#redirect\/ipns:\/\//i, '/ipns/') // ipns://Qm → /ipns/Qm
+  // console.log(`oldPath: '${oldPath}' new: '${path}'`)
   if (oldPath !== path && IsIpfs.path(path)) {
     return { redirectUrl: urlAtPublicGw(path, pubGwUrl) }
   }
   return null
 }
 
-// PROTOCOL HANDLERS: UNIVERSAL FALLBACK FOR UNHANDLED PROTOCOLS
+// SEARCH-HIJACK HANDLERS: UNIVERSAL FALLBACK FOR UNHANDLED PROTOCOLS
+// (Used in Chrome and other browsers that do not provide better alternatives)
+// Background: https://github.com/ipfs-shipyard/ipfs-companion/issues/164#issuecomment-328374052
 // ===================================================================
 
 const unhandledIpfsRE = /=(?:web%2B|)(ipfs(?=%3A%2F%2F)|ipns(?=%3A%2F%2F)|dweb(?=%3A%2Fip[f|n]s))%3A(?:%2F%2F|%2F)([^&]+)/
diff --git a/test/functional/lib/ipfs-request.test.js b/test/functional/lib/ipfs-request.test.js
index 0435bba09..951b7a6d4 100644
--- a/test/functional/lib/ipfs-request.test.js
+++ b/test/functional/lib/ipfs-request.test.js
@@ -153,47 +153,83 @@ describe('modifyRequest', function () {
       state.ipfsNodeType = nodeType
     })
     describe(`with ${nodeType} node:`, function () {
-      describe('request made via "web+" handler from manifest.json/protocol_handlers', function () {
-        // requests done with custom protocol handler are always  normalized to public gateway
+      describe('request made via redirect-based protocol handler from manifest.json/protocol_handlers', function () {
+        // Note: requests done with custom protocol handler are always  normalized to public gateway
         // (if external node is enabled, redirect will happen in next iteration of modifyRequest)
+
+        // without web+ prefix (Firefox > 59: https://github.com/ipfs-shipyard/ipfs-companion/issues/164#issuecomment-356301174)
+        it('should not be normalized if ipfs:/{CID}', function () {
+          const request = url2request('https://ipfs.io/#redirect/ipfs%3A%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          expect(modifyRequest(request)).to.equal(undefined)
+        })
+        it('should be normalized if ipfs://{CID}', function () {
+          const request = url2request('https://ipfs.io/#redirect/ipfs%3A%2F%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR?argTest#hashTest')
+        })
+        it('should not be normalized if ipns:/{foo}', function () {
+          const request = url2request('https://ipfs.io/#redirect/ipns%3A%2Fipfs.io%3FargTest%23hashTest')
+          expect(modifyRequest(request)).to.equal(undefined)
+        })
+        it('should be normalized if ipns://{foo}', function () {
+          const request = url2request('https://ipfs.io/#redirect/ipns%3A%2F%2Fipfs.io%3FargTest%23hashTest')
+          expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipns/ipfs.io?argTest#hashTest')
+        })
+        it('should be normalized if dweb:/ipfs/{CID}', function () {
+          const request = url2request('https://ipfs.io/#redirect/dweb%3A%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR?argTest#hashTest')
+        })
+        it('should not be normalized if dweb://ipfs/{CID}', function () {
+          const request = url2request('https://ipfs.io/#redirect/dweb%3A%2F%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          expect(modifyRequest(request)).to.equal(undefined)
+        })
+        it('should be normalized if dweb:/ipns/{foo}', function () {
+          const request = url2request('https://ipfs.io/#redirect/dweb%3A%2Fipns/ipfs.io%3FargTest%23hashTest')
+          expect(modifyRequest(request).redirectUrl).equal('https://ipfs.io/ipns/ipfs.io?argTest#hashTest')
+        })
+        it('should not be normalized if dweb://ipns/{foo}', function () {
+          const request = url2request('https://ipfs.io/#redirect/dweb%3A%2F%2Fipns/ipfs.io%3FargTest%23hashTest')
+          expect(modifyRequest(request)).to.equal(undefined)
+        })
+
+        // web+ prefixed versions (Firefox < 59 and Chrome)
         it('should not be normalized if web+ipfs:/{CID}', function () {
-          const request = url2request('https://ipfs.io/web%2Bipfs%3A%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bipfs%3A%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
         it('should be normalized if web+ipfs://{CID}', function () {
-          const request = url2request('https://ipfs.io/web%2Bipfs%3A%2F%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bipfs%3A%2F%2FQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
           expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR?argTest#hashTest')
         })
         it('should not be normalized if web+ipns:/{foo}', function () {
-          const request = url2request('https://ipfs.io/web%2Bipns%3A%2Fipfs.io%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bipns%3A%2Fipfs.io%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
         it('should be normalized if web+ipns://{foo}', function () {
-          const request = url2request('https://ipfs.io/web%2Bipns%3A%2F%2Fipfs.io%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bipns%3A%2F%2Fipfs.io%3FargTest%23hashTest')
           expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipns/ipfs.io?argTest#hashTest')
         })
         it('should be normalized if web+dweb:/ipfs/{CID}', function () {
-          const request = url2request('https://ipfs.io/web%2Bdweb%3A%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bdweb%3A%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
           expect(modifyRequest(request).redirectUrl).to.equal('https://ipfs.io/ipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR?argTest#hashTest')
         })
         it('should not be normalized if web+dweb://ipfs/{CID}', function () {
-          const request = url2request('https://ipfs.io/web%2Bdweb%3A%2F%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bdweb%3A%2F%2Fipfs/QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
         it('should be normalized if web+dweb:/ipns/{foo}', function () {
-          const request = url2request('https://ipfs.io/web%2Bdweb%3A%2Fipns/ipfs.io%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bdweb%3A%2Fipns/ipfs.io%3FargTest%23hashTest')
           expect(modifyRequest(request).redirectUrl).equal('https://ipfs.io/ipns/ipfs.io?argTest#hashTest')
         })
         it('should not be normalized if web+dweb://ipns/{foo}', function () {
-          const request = url2request('https://ipfs.io/web%2Bdweb%3A%2F%2Fipns/ipfs.io%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bdweb%3A%2F%2Fipns/ipfs.io%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
         it('should not be normalized if web+{foo}:/bar', function () {
-          const request = url2request('https://ipfs.io/web%2Bfoo%3A%2Fbar%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bfoo%3A%2Fbar%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
         it('should not be normalized if web+{foo}://bar', function () {
-          const request = url2request('https://ipfs.io/web%2Bfoo%3A%2F%2Fbar%3FargTest%23hashTest')
+          const request = url2request('https://ipfs.io/#redirect/web%2Bfoo%3A%2F%2Fbar%3FargTest%23hashTest')
           expect(modifyRequest(request)).to.equal(undefined)
         })
       })
diff --git a/yarn.lock b/yarn.lock
index 3765c5ab6..c7603fecd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -112,10 +112,14 @@ acorn@^4.0.3:
   version "4.0.13"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
 
-acorn@^5.0.0, acorn@^5.2.1, acorn@^5.4.0, acorn@^5.4.1:
+acorn@^5.0.0, acorn@^5.4.0, acorn@^5.4.1:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.4.1.tgz#fdc58d9d17f4a4e98d102ded826a9b9759125102"
 
+acorn@^5.2.1:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.3.0.tgz#7446d39459c54fb49a80e6ee6478149b940ec822"
+
 adbkit-logcat@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/adbkit-logcat/-/adbkit-logcat-1.1.0.tgz#01d7f9b0cef9093a30bcb3b007efff301508962f"
@@ -2343,8 +2347,8 @@ epimetheus@^1.0.55:
     prom-client "^10.0.0"
 
 errno@^0.1.3, errno@~0.1.1:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.6.tgz#c386ce8a6283f14fc09563b71560908c9bf53026"
   dependencies:
     prr "~1.0.1"
 
@@ -9069,11 +9073,11 @@ trough@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trough/-/trough-1.0.1.tgz#a9fd8b0394b0ae8fff82e0633a0a36ccad5b5f86"
 
-tty-browserify@0.0.0:
+tty-browserify@0.0.0, tty-browserify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
 
-tty-browserify@0.0.1, tty-browserify@~0.0.0:
+tty-browserify@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.1.tgz#3f05251ee17904dfd0677546670db9651682b811"