diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71df78542..2c06c88bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [9.8.2]
+### Changed
+- [1156511545](https://github.com/MetaMask/metamask-extension/pull/11545): Allow MetaMask Swaps to support Polygon network
+
+### Fixed
+- [11565](https://github.com/MetaMask/metamask-extension/pull/11565): Fix gas limit estimation for some tokens on custom networks
+- [11581](https://github.com/MetaMask/metamask-extension/pull/11581): Fixed bug that resulted in sends to some contracts being disabled.
+
 ## [9.8.1]
 ### Changed
 - Adjusting transaction metrics values
@@ -2336,7 +2344,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Uncategorized
 - Added the ability to restore accounts from seed words.
 
-[Unreleased]: https://github.com/MetaMask/metamask-extension/compare/v9.8.1...HEAD
+[Unreleased]: https://github.com/MetaMask/metamask-extension/compare/v9.8.2...HEAD
+[9.8.2]: https://github.com/MetaMask/metamask-extension/compare/v9.8.1...v9.8.2
 [9.8.1]: https://github.com/MetaMask/metamask-extension/compare/v9.8.0...v9.8.1
 [9.8.0]: https://github.com/MetaMask/metamask-extension/compare/v9.7.1...v9.8.0
 [9.7.1]: https://github.com/MetaMask/metamask-extension/compare/v9.7.0...v9.7.1
diff --git a/app/images/matic-token.png b/app/images/matic-token.png
new file mode 100644
index 000000000..b154c46ea
Binary files /dev/null and b/app/images/matic-token.png differ
diff --git a/package.json b/package.json
index 9fb661cbc..61b05b65f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "metamask-crx",
-  "version": "9.8.1",
+  "version": "9.8.2",
   "private": true,
   "repository": {
     "type": "git",
diff --git a/shared/constants/network.js b/shared/constants/network.js
index 66bd1e949..1d22b5271 100644
--- a/shared/constants/network.js
+++ b/shared/constants/network.js
@@ -49,10 +49,12 @@ export const ETH_SYMBOL = 'ETH';
 export const WETH_SYMBOL = 'WETH';
 export const TEST_ETH_SYMBOL = 'TESTETH';
 export const BNB_SYMBOL = 'BNB';
+export const MATIC_SYMBOL = 'MATIC';
 
 export const ETH_TOKEN_IMAGE_URL = './images/eth_logo.svg';
 export const TEST_ETH_TOKEN_IMAGE_URL = './images/black-eth-logo.svg';
 export const BNB_TOKEN_IMAGE_URL = './images/bnb.png';
+export const MATIC_TOKEN_IMAGE_URL = './images/matic-token.png';
 
 export const INFURA_PROVIDER_TYPES = [ROPSTEN, RINKEBY, KOVAN, MAINNET, GOERLI];
 
diff --git a/shared/constants/swaps.js b/shared/constants/swaps.js
index 00512c0cc..dba447b2c 100644
--- a/shared/constants/swaps.js
+++ b/shared/constants/swaps.js
@@ -6,6 +6,9 @@ import {
   TEST_ETH_TOKEN_IMAGE_URL,
   BNB_TOKEN_IMAGE_URL,
   BSC_CHAIN_ID,
+  POLYGON_CHAIN_ID,
+  MATIC_SYMBOL,
+  MATIC_TOKEN_IMAGE_URL,
 } from './network';
 
 export const QUOTES_EXPIRED_ERROR = 'quotes-expired';
@@ -35,6 +38,14 @@ export const BNB_SWAPS_TOKEN_OBJECT = {
   iconUrl: BNB_TOKEN_IMAGE_URL,
 };
 
+export const MATIC_SWAPS_TOKEN_OBJECT = {
+  symbol: MATIC_SYMBOL,
+  name: 'Matic',
+  address: DEFAULT_TOKEN_ADDRESS,
+  decimals: 18,
+  iconUrl: MATIC_TOKEN_IMAGE_URL,
+};
+
 export const TEST_ETH_SWAPS_TOKEN_OBJECT = {
   symbol: TEST_ETH_SYMBOL,
   name: 'Test Ether',
@@ -52,6 +63,9 @@ const TESTNET_CONTRACT_ADDRESS = '0x881d40237659c251811cec9c364ef91dc08d300c';
 
 const BSC_CONTRACT_ADDRESS = '0x1a1ec25dc08e98e5e93f1104b5e5cdd298707d31';
 
+// It's the same as we use for BSC.
+const POLYGON_CONTRACT_ADDRESS = '0x1a1ec25dc08e98e5e93f1104b5e5cdd298707d31';
+
 export const ETH_WETH_CONTRACT_ADDRESS =
   '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2';
 
@@ -64,13 +78,16 @@ const SWAPS_TESTNET_HOST = 'https://metaswap-api.airswap-dev.codefi.network';
 
 const BSC_DEFAULT_BLOCK_EXPLORER_URL = 'https://bscscan.com/';
 const MAINNET_DEFAULT_BLOCK_EXPLORER_URL = 'https://etherscan.io/';
+const POLYGON_DEFAULT_BLOCK_EXPLORER_URL = 'https://polygonscan.com/';
 
 export const ALLOWED_SWAPS_CHAIN_IDS = {
   [MAINNET_CHAIN_ID]: true,
   [SWAPS_TESTNET_CHAIN_ID]: true,
   [BSC_CHAIN_ID]: true,
+  [POLYGON_CHAIN_ID]: true,
 };
 
+// This is mapping for v1 URLs and will be removed once we migrate to v2.
 export const METASWAP_CHAINID_API_HOST_MAP = {
   [MAINNET_CHAIN_ID]: METASWAP_ETH_API_HOST,
   [SWAPS_TESTNET_CHAIN_ID]: SWAPS_TESTNET_HOST,
@@ -81,17 +98,20 @@ export const SWAPS_CHAINID_CONTRACT_ADDRESS_MAP = {
   [MAINNET_CHAIN_ID]: MAINNET_CONTRACT_ADDRESS,
   [SWAPS_TESTNET_CHAIN_ID]: TESTNET_CONTRACT_ADDRESS,
   [BSC_CHAIN_ID]: BSC_CONTRACT_ADDRESS,
+  [POLYGON_CHAIN_ID]: POLYGON_CONTRACT_ADDRESS,
 };
 
 export const SWAPS_CHAINID_DEFAULT_TOKEN_MAP = {
   [MAINNET_CHAIN_ID]: ETH_SWAPS_TOKEN_OBJECT,
   [SWAPS_TESTNET_CHAIN_ID]: TEST_ETH_SWAPS_TOKEN_OBJECT,
   [BSC_CHAIN_ID]: BNB_SWAPS_TOKEN_OBJECT,
+  [POLYGON_CHAIN_ID]: MATIC_SWAPS_TOKEN_OBJECT,
 };
 
 export const SWAPS_CHAINID_DEFAULT_BLOCK_EXPLORER_URL_MAP = {
   [BSC_CHAIN_ID]: BSC_DEFAULT_BLOCK_EXPLORER_URL,
   [MAINNET_CHAIN_ID]: MAINNET_DEFAULT_BLOCK_EXPLORER_URL,
+  [POLYGON_CHAIN_ID]: POLYGON_DEFAULT_BLOCK_EXPLORER_URL,
 };
 
 export const ETHEREUM = 'ethereum';
diff --git a/ui/ducks/send/send.js b/ui/ducks/send/send.js
index 718d78d93..33b20cb30 100644
--- a/ui/ducks/send/send.js
+++ b/ui/ducks/send/send.js
@@ -183,8 +183,19 @@ async function estimateGasLimitForSend({
   let isSimpleSendOnNonStandardNetwork = false;
 
   // blockGasLimit may be a falsy, but defined, value when we receive it from
-  // state, so we use logical or to fall back to MIN_GAS_LIMIT_HEX.
-  const blockGasLimit = options.blockGasLimit || MIN_GAS_LIMIT_HEX;
+  // state, so we use logical or to fall back to MIN_GAS_LIMIT_HEX. Some
+  // network implementations check the gas parameter supplied to
+  // eth_estimateGas for validity. For this reason, we set token sends
+  // blockGasLimit default to a higher number. Note that the current gasLimit
+  // on a BLOCK is 15,000,000 and will be 30,000,000 on mainnet after London.
+  // Meanwhile, MIN_GAS_LIMIT_HEX is 0x5208.
+  let blockGasLimit = MIN_GAS_LIMIT_HEX;
+  if (options.blockGasLimit) {
+    blockGasLimit = options.blockGasLimit;
+  } else if (sendToken) {
+    blockGasLimit = GAS_LIMITS.BASE_TOKEN_ESTIMATE;
+  }
+
   // The parameters below will be sent to our background process to estimate
   // how much gas will be used for a transaction. That background process is
   // located in tx-gas-utils.js in the transaction controller folder.
@@ -1026,6 +1037,11 @@ const slice = createSlice({
           });
         }
       })
+      .addCase(computeEstimatedGasLimit.rejected, (state) => {
+        // If gas estimation fails, we should set the loading state to false,
+        // because it is no longer loading
+        state.gas.isGasEstimateLoading = false;
+      })
       .addCase(SET_BASIC_GAS_ESTIMATE_DATA, (state, action) => {
         // When we receive a new gasPrice via the gas duck we need to update
         // the gasPrice in our slice. We call into the caseReducer
diff --git a/ui/pages/swaps/swaps.util.js b/ui/pages/swaps/swaps.util.js
index 068c3f870..160cded10 100644
--- a/ui/pages/swaps/swaps.util.js
+++ b/ui/pages/swaps/swaps.util.js
@@ -77,6 +77,9 @@ const getBaseApi = function (
   const baseUrl = useNewSwapsApi
     ? getBaseUrlForNewSwapsApi(type, chainId)
     : METASWAP_CHAINID_API_HOST_MAP[chainId];
+  if (!baseUrl) {
+    throw new Error(`Swaps API calls are disabled for chainId: ${chainId}`);
+  }
   switch (type) {
     case 'trade':
       return `${baseUrl}/trades?`;