diff --git a/README.md b/README.md
index b08f5a9..f52ffe2 100644
--- a/README.md
+++ b/README.md
@@ -141,7 +141,7 @@ session | Optional. Will send the request from and existing browser instance. If
 maxTimeout | Optional, default value 60000. Max timeout to solve the challenge in milliseconds.
 cookies | Optional. Will be used by the headless browser. Follow [this](https://github.com/puppeteer/puppeteer/blob/v3.3.0/docs/api.md#pagesetcookiecookies) format.
 returnOnlyCookies | Optional, default false. Only returns the cookies. Response data, headers and other parts of the response are removed.
-proxy | Optional, default disabled. Eg: `"proxy": {"url": "http://127.0.0.1:8888"}`. Authorization (username/password) is not supported.
+proxy | Optional, default disabled. Eg: `"proxy": {"url": "http://127.0.0.1:8888"}`. You must include the proxy schema in the URL: `http://`, `socks4://` or `socks5://`. Authorization (username/password) is not supported.
 
 :warning: If you want to use Cloudflare clearance cookie in your scripts, make sure you use the FlareSolverr User-Agent too. If they don't match you will see the challenge.
 
diff --git a/src/services/sessions.ts b/src/services/sessions.ts
index de8a8d1..190d802 100644
--- a/src/services/sessions.ts
+++ b/src/services/sessions.ts
@@ -60,18 +60,35 @@ function buildExtraPrefsFirefox(proxy: Proxy): object {
     const port = parseInt(portStr);
 
     const proxyPrefs = {
-      // Proxy configuration
-      "network.proxy.ftp": host,
-      "network.proxy.ftp_port": port,
-      "network.proxy.http": host,
-      "network.proxy.http_port": port,
-      "network.proxy.share_proxy_settings": true,
-      "network.proxy.socks": host,
-      "network.proxy.socks_port": port,
-      "network.proxy.socks_remote_dns": true,
-      "network.proxy.ssl": host,
-      "network.proxy.ssl_port": port,
-      "network.proxy.type": 1
+      "network.proxy.type": 1,
+      "network.proxy.share_proxy_settings": true
+    }
+    if (proxy.url.indexOf("socks") != -1) {
+      // SOCKSv4 & SOCKSv5
+      Object.assign(proxyPrefs, {
+        "network.proxy.socks": host,
+        "network.proxy.socks_port": port,
+        "network.proxy.socks_remote_dns": true
+      });
+      if (proxy.url.indexOf("socks4") != -1) {
+        Object.assign(proxyPrefs, {
+          "network.proxy.socks_version": 4
+        });
+      } else {
+        Object.assign(proxyPrefs, {
+          "network.proxy.socks_version": 5
+        });
+      }
+    } else {
+      // HTTP
+      Object.assign(proxyPrefs, {
+        "network.proxy.ftp": host,
+        "network.proxy.ftp_port": port,
+        "network.proxy.http": host,
+        "network.proxy.http_port": port,
+        "network.proxy.ssl": host,
+        "network.proxy.ssl_port": port
+      });
     }
 
     // merge objects
diff --git a/src/tests/app.test.ts b/src/tests/app.test.ts
index a186b57..5dab3a5 100644
--- a/src/tests/app.test.ts
+++ b/src/tests/app.test.ts
@@ -9,6 +9,7 @@ const sessions = require('../services/sessions');
 const version: string = 'v' + require('../../package.json').version
 
 const proxyUrl = "http://127.0.0.1:8888"
+const proxySocksUrl = "socks5://127.0.0.1:1080"
 const googleUrl = "https://www.google.com";
 const postUrl = "https://ptsv2.com/t/qv4j3-1634496523";
 const cfUrl = "https://pirateiro.com/torrents/?search=harry";
@@ -221,7 +222,7 @@ describe("Test '/v1' path", () => {
         expect(solution.userAgent).toBe(null)
     });
 
-    test("Cmd 'request.get' should return OK with 'proxy' param", async () => {
+    test("Cmd 'request.get' should return OK with HTTP 'proxy' param", async () => {
         /*
         To configure TinyProxy in local:
            * sudo vim /etc/tinyproxy/tinyproxy.conf
@@ -249,7 +250,7 @@ describe("Test '/v1' path", () => {
     });
 
     // todo: credentials are not working
-    test.skip("Cmd 'request.get' should return OK with 'proxy' param with credentials", async () => {
+    test.skip("Cmd 'request.get' should return OK with HTTP 'proxy' param with credentials", async () => {
         /*
         To configure TinyProxy in local:
            * sudo vim /etc/tinyproxy/tinyproxy.conf
@@ -279,6 +280,32 @@ describe("Test '/v1' path", () => {
         expect(solution.status).toContain(200)
     });
 
+    test("Cmd 'request.get' should return OK with SOCKSv5 'proxy' param", async () => {
+        /*
+        To configure Dante in local:
+           * https://linuxhint.com/set-up-a-socks5-proxy-on-ubuntu-with-dante/
+           * sudo vim /etc/sockd.conf
+           * sudo systemctl restart sockd.service
+           * curl --socks5 socks5://127.0.0.1:1080 https://www.google.com
+        */
+        const payload = {
+            "cmd": "request.get",
+            "url": googleUrl,
+            "proxy": {
+                "url": proxySocksUrl
+            }
+        }
+        const response: Response = await request(app).post("/v1").send(payload);
+        expect(response.statusCode).toBe(200);
+
+        const apiResponse: V1ResponseSolution = response.body;
+        expect(apiResponse.status).toBe("ok");
+
+        const solution = apiResponse.solution;
+        expect(solution.url).toContain(googleUrl)
+        expect(solution.status).toBe(200);
+    });
+
     test("Cmd 'request.get' should fail with wrong 'proxy' param", async () => {
         const payload = {
             "cmd": "request.get",