diff --git a/console/bridge.go b/console/bridge.go
index 21ef0e8e7..c67686d6c 100644
--- a/console/bridge.go
+++ b/console/bridge.go
@@ -18,6 +18,7 @@ package console
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -77,18 +78,18 @@ func (b *bridge) NewAccount(call jsre.Call) (goja.Value, error) {
 			return nil, err
 		}
 		if password != confirm {
-			return nil, fmt.Errorf("passwords don't match!")
+			return nil, errors.New("passwords don't match!")
 		}
 	// A single string password was specified, use that
 	case len(call.Arguments) == 1 && call.Argument(0).ToString() != nil:
 		password = call.Argument(0).ToString().String()
 	default:
-		return nil, fmt.Errorf("expected 0 or 1 string argument")
+		return nil, errors.New("expected 0 or 1 string argument")
 	}
 	// Password acquired, execute the call and return
 	newAccount, callable := goja.AssertFunction(getJeth(call.VM).Get("newAccount"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.newAccount is not callable")
+		return nil, errors.New("jeth.newAccount is not callable")
 	}
 	ret, err := newAccount(goja.Null(), call.VM.ToValue(password))
 	if err != nil {
@@ -102,7 +103,7 @@ func (b *bridge) NewAccount(call jsre.Call) (goja.Value, error) {
 func (b *bridge) OpenWallet(call jsre.Call) (goja.Value, error) {
 	// Make sure we have a wallet specified to open
 	if call.Argument(0).ToObject(call.VM).ClassName() != "String" {
-		return nil, fmt.Errorf("first argument must be the wallet URL to open")
+		return nil, errors.New("first argument must be the wallet URL to open")
 	}
 	wallet := call.Argument(0)
 
@@ -115,7 +116,7 @@ func (b *bridge) OpenWallet(call jsre.Call) (goja.Value, error) {
 	// Open the wallet and return if successful in itself
 	openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.openWallet is not callable")
+		return nil, errors.New("jeth.openWallet is not callable")
 	}
 	val, err := openWallet(goja.Null(), wallet, passwd)
 	if err == nil {
@@ -198,7 +199,7 @@ func (b *bridge) readPassphraseAndReopenWallet(call jsre.Call) (goja.Value, erro
 	}
 	openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.openWallet is not callable")
+		return nil, errors.New("jeth.openWallet is not callable")
 	}
 	return openWallet(goja.Null(), wallet, call.VM.ToValue(input))
 }
@@ -219,7 +220,7 @@ func (b *bridge) readPinAndReopenWallet(call jsre.Call) (goja.Value, error) {
 	}
 	openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.openWallet is not callable")
+		return nil, errors.New("jeth.openWallet is not callable")
 	}
 	return openWallet(goja.Null(), wallet, call.VM.ToValue(input))
 }
@@ -230,13 +231,13 @@ func (b *bridge) readPinAndReopenWallet(call jsre.Call) (goja.Value, error) {
 // the RPC call.
 func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
 	if len(call.Arguments) < 1 {
-		return nil, fmt.Errorf("usage: unlockAccount(account, [ password, duration ])")
+		return nil, errors.New("usage: unlockAccount(account, [ password, duration ])")
 	}
 
 	account := call.Argument(0)
 	// Make sure we have an account specified to unlock.
 	if goja.IsUndefined(account) || goja.IsNull(account) || account.ExportType().Kind() != reflect.String {
-		return nil, fmt.Errorf("first argument must be the account to unlock")
+		return nil, errors.New("first argument must be the account to unlock")
 	}
 
 	// If password is not given or is the null value, prompt the user for it.
@@ -250,7 +251,7 @@ func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
 		passwd = call.VM.ToValue(input)
 	} else {
 		if call.Argument(1).ExportType().Kind() != reflect.String {
-			return nil, fmt.Errorf("password must be a string")
+			return nil, errors.New("password must be a string")
 		}
 		passwd = call.Argument(1)
 	}
@@ -259,7 +260,7 @@ func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
 	duration := goja.Null()
 	if !goja.IsUndefined(call.Argument(2)) && !goja.IsNull(call.Argument(2)) {
 		if !isNumber(call.Argument(2)) {
-			return nil, fmt.Errorf("unlock duration must be a number")
+			return nil, errors.New("unlock duration must be a number")
 		}
 		duration = call.Argument(2)
 	}
@@ -267,7 +268,7 @@ func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
 	// Send the request to the backend and return.
 	unlockAccount, callable := goja.AssertFunction(getJeth(call.VM).Get("unlockAccount"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.unlockAccount is not callable")
+		return nil, errors.New("jeth.unlockAccount is not callable")
 	}
 	return unlockAccount(goja.Null(), account, passwd, duration)
 }
@@ -277,7 +278,7 @@ func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
 // jeth.sign) with it to actually execute the RPC call.
 func (b *bridge) Sign(call jsre.Call) (goja.Value, error) {
 	if nArgs := len(call.Arguments); nArgs < 2 {
-		return nil, fmt.Errorf("usage: sign(message, account, [ password ])")
+		return nil, errors.New("usage: sign(message, account, [ password ])")
 	}
 	var (
 		message = call.Argument(0)
@@ -286,10 +287,10 @@ func (b *bridge) Sign(call jsre.Call) (goja.Value, error) {
 	)
 
 	if goja.IsUndefined(message) || message.ExportType().Kind() != reflect.String {
-		return nil, fmt.Errorf("first argument must be the message to sign")
+		return nil, errors.New("first argument must be the message to sign")
 	}
 	if goja.IsUndefined(account) || account.ExportType().Kind() != reflect.String {
-		return nil, fmt.Errorf("second argument must be the account to sign with")
+		return nil, errors.New("second argument must be the account to sign with")
 	}
 
 	// if the password is not given or null ask the user and ensure password is a string
@@ -301,13 +302,13 @@ func (b *bridge) Sign(call jsre.Call) (goja.Value, error) {
 		}
 		passwd = call.VM.ToValue(input)
 	} else if passwd.ExportType().Kind() != reflect.String {
-		return nil, fmt.Errorf("third argument must be the password to unlock the account")
+		return nil, errors.New("third argument must be the password to unlock the account")
 	}
 
 	// Send the request to the backend and return
 	sign, callable := goja.AssertFunction(getJeth(call.VM).Get("sign"))
 	if !callable {
-		return nil, fmt.Errorf("jeth.sign is not callable")
+		return nil, errors.New("jeth.sign is not callable")
 	}
 	return sign(goja.Null(), message, account, passwd)
 }
@@ -315,11 +316,11 @@ func (b *bridge) Sign(call jsre.Call) (goja.Value, error) {
 // Sleep will block the console for the specified number of seconds.
 func (b *bridge) Sleep(call jsre.Call) (goja.Value, error) {
 	if nArgs := len(call.Arguments); nArgs < 1 {
-		return nil, fmt.Errorf("usage: sleep(<number of seconds>)")
+		return nil, errors.New("usage: sleep(<number of seconds>)")
 	}
 	sleepObj := call.Argument(0)
 	if goja.IsUndefined(sleepObj) || goja.IsNull(sleepObj) || !isNumber(sleepObj) {
-		return nil, fmt.Errorf("usage: sleep(<number of seconds>)")
+		return nil, errors.New("usage: sleep(<number of seconds>)")
 	}
 	sleep := sleepObj.ToFloat()
 	time.Sleep(time.Duration(sleep * float64(time.Second)))
@@ -336,17 +337,17 @@ func (b *bridge) SleepBlocks(call jsre.Call) (goja.Value, error) {
 	)
 	nArgs := len(call.Arguments)
 	if nArgs == 0 {
-		return nil, fmt.Errorf("usage: sleepBlocks(<n blocks>[, max sleep in seconds])")
+		return nil, errors.New("usage: sleepBlocks(<n blocks>[, max sleep in seconds])")
 	}
 	if nArgs >= 1 {
 		if goja.IsNull(call.Argument(0)) || goja.IsUndefined(call.Argument(0)) || !isNumber(call.Argument(0)) {
-			return nil, fmt.Errorf("expected number as first argument")
+			return nil, errors.New("expected number as first argument")
 		}
 		blocks = call.Argument(0).ToInteger()
 	}
 	if nArgs >= 2 {
 		if goja.IsNull(call.Argument(1)) || goja.IsUndefined(call.Argument(1)) || !isNumber(call.Argument(1)) {
-			return nil, fmt.Errorf("expected number as second argument")
+			return nil, errors.New("expected number as second argument")
 		}
 		sleep = call.Argument(1).ToInteger()
 	}
@@ -421,7 +422,7 @@ func (b *bridge) Send(call jsre.Call) (goja.Value, error) {
 				JSON := call.VM.Get("JSON").ToObject(call.VM)
 				parse, callable := goja.AssertFunction(JSON.Get("parse"))
 				if !callable {
-					return nil, fmt.Errorf("JSON.parse is not a function")
+					return nil, errors.New("JSON.parse is not a function")
 				}
 				resultVal, err := parse(goja.Null(), call.VM.ToValue(string(result)))
 				if err != nil {
diff --git a/core/block_validator.go b/core/block_validator.go
index bcb228830..fbd0d4bcf 100644
--- a/core/block_validator.go
+++ b/core/block_validator.go
@@ -17,6 +17,7 @@
 package core
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/ethereum/go-ethereum/consensus"
@@ -71,14 +72,14 @@ func (v *BlockValidator) ValidateBody(block *types.Block) error {
 	if header.WithdrawalsHash != nil {
 		// Withdrawals list must be present in body after Shanghai.
 		if block.Withdrawals() == nil {
-			return fmt.Errorf("missing withdrawals in block body")
+			return errors.New("missing withdrawals in block body")
 		}
 		if hash := types.DeriveSha(block.Withdrawals(), trie.NewStackTrie(nil)); hash != *header.WithdrawalsHash {
 			return fmt.Errorf("withdrawals root hash mismatch (header value %x, calculated %x)", *header.WithdrawalsHash, hash)
 		}
 	} else if block.Withdrawals() != nil {
 		// Withdrawals are not allowed prior to shanghai fork
-		return fmt.Errorf("withdrawals present in block body")
+		return errors.New("withdrawals present in block body")
 	}
 
 	if !v.bc.HasBlockAndState(block.ParentHash(), block.NumberU64()-1) {
diff --git a/core/blockchain.go b/core/blockchain.go
index 659b2f02e..c1d15350f 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -87,6 +87,8 @@ var (
 
 	errInsertionInterrupted = errors.New("insertion is interrupted")
 	errChainStopped         = errors.New("blockchain is stopped")
+	errInvalidOldChain      = errors.New("invalid old chain")
+	errInvalidNewChain      = errors.New("invalid new chain")
 )
 
 const (
@@ -865,7 +867,7 @@ func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error {
 			return fmt.Errorf("export failed on #%d: not found", nr)
 		}
 		if nr > first && block.ParentHash() != parentHash {
-			return fmt.Errorf("export failed: chain reorg during export")
+			return errors.New("export failed: chain reorg during export")
 		}
 		parentHash = block.Hash()
 		if err := block.EncodeRLP(w); err != nil {
@@ -2097,10 +2099,10 @@ func (bc *BlockChain) reorg(oldHead *types.Header, newHead *types.Block) error {
 		}
 	}
 	if oldBlock == nil {
-		return errors.New("invalid old chain")
+		return errInvalidOldChain
 	}
 	if newBlock == nil {
-		return errors.New("invalid new chain")
+		return errInvalidNewChain
 	}
 	// Both sides of the reorg are at the same number, reduce both until the common
 	// ancestor is found
@@ -2120,11 +2122,11 @@ func (bc *BlockChain) reorg(oldHead *types.Header, newHead *types.Block) error {
 		// Step back with both chains
 		oldBlock = bc.GetBlock(oldBlock.ParentHash(), oldBlock.NumberU64()-1)
 		if oldBlock == nil {
-			return fmt.Errorf("invalid old chain")
+			return errInvalidOldChain
 		}
 		newBlock = bc.GetBlock(newBlock.ParentHash(), newBlock.NumberU64()-1)
 		if newBlock == nil {
-			return fmt.Errorf("invalid new chain")
+			return errInvalidNewChain
 		}
 	}
 
diff --git a/core/chain_indexer.go b/core/chain_indexer.go
index 23ab23ef0..f5fce7258 100644
--- a/core/chain_indexer.go
+++ b/core/chain_indexer.go
@@ -19,6 +19,7 @@ package core
 import (
 	"context"
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"sync"
 	"sync/atomic"
@@ -403,7 +404,7 @@ func (c *ChainIndexer) processSection(section uint64, lastHead common.Hash) (com
 		if header == nil {
 			return common.Hash{}, fmt.Errorf("block #%d [%x..] not found", number, hash[:4])
 		} else if header.ParentHash != lastHead {
-			return common.Hash{}, fmt.Errorf("chain reorged during section processing")
+			return common.Hash{}, errors.New("chain reorged during section processing")
 		}
 		if err := c.backend.Process(c.ctx, header); err != nil {
 			return common.Hash{}, err
diff --git a/core/genesis.go b/core/genesis.go
index 68eeec216..7159acb96 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -73,7 +73,7 @@ func ReadGenesis(db ethdb.Database) (*Genesis, error) {
 	}
 	blob := rawdb.ReadGenesisStateSpec(db, stored)
 	if blob == nil {
-		return nil, fmt.Errorf("genesis state missing from db")
+		return nil, errors.New("genesis state missing from db")
 	}
 	if len(blob) != 0 {
 		if err := genesis.Alloc.UnmarshalJSON(blob); err != nil {
@@ -82,11 +82,11 @@ func ReadGenesis(db ethdb.Database) (*Genesis, error) {
 	}
 	genesis.Config = rawdb.ReadChainConfig(db, stored)
 	if genesis.Config == nil {
-		return nil, fmt.Errorf("genesis config missing from db")
+		return nil, errors.New("genesis config missing from db")
 	}
 	genesisBlock := rawdb.ReadBlock(db, stored, 0)
 	if genesisBlock == nil {
-		return nil, fmt.Errorf("genesis block missing from db")
+		return nil, errors.New("genesis block missing from db")
 	}
 	genesisHeader := genesisBlock.Header()
 	genesis.Nonce = genesisHeader.Nonce.Uint64()
@@ -366,7 +366,7 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, triedb *trie.Database, gen
 	// are returned to the caller unless we're already at block zero.
 	head := rawdb.ReadHeadHeader(db)
 	if head == nil {
-		return newcfg, stored, fmt.Errorf("missing head header")
+		return newcfg, stored, errors.New("missing head header")
 	}
 	compatErr := storedcfg.CheckCompatible(newcfg, head.Number.Uint64(), head.Time)
 	if compatErr != nil && ((head.Number.Uint64() != 0 && compatErr.RewindToBlock != 0) || (head.Time != 0 && compatErr.RewindToTime != 0)) {
diff --git a/core/rawdb/freezer.go b/core/rawdb/freezer.go
index 323dc1ddb..a08f126d6 100644
--- a/core/rawdb/freezer.go
+++ b/core/rawdb/freezer.go
@@ -434,7 +434,7 @@ func (f *Freezer) MigrateTable(kind string, convert convertLegacyFn) error {
 	// TODO(s1na): This is a sanity-check since as of now no process does tail-deletion. But the migration
 	// process assumes no deletion at tail and needs to be modified to account for that.
 	if table.itemOffset.Load() > 0 || table.itemHidden.Load() > 0 {
-		return fmt.Errorf("migration not supported for tail-deleted freezers")
+		return errors.New("migration not supported for tail-deleted freezers")
 	}
 	ancientsPath := filepath.Dir(table.index.Name())
 	// Set up new dir for the migrated table, the content of which
diff --git a/core/state/snapshot/journal.go b/core/state/snapshot/journal.go
index c1a4cc3d4..4d070208f 100644
--- a/core/state/snapshot/journal.go
+++ b/core/state/snapshot/journal.go
@@ -305,7 +305,7 @@ func iterateJournal(db ethdb.KeyValueReader, callback journalCallback) error {
 	}
 	if baseRoot := rawdb.ReadSnapshotRoot(db); baseRoot != parent {
 		log.Warn("Loaded snapshot journal", "diskroot", baseRoot, "diffs", "unmatched")
-		return fmt.Errorf("mismatched disk and diff layers")
+		return errors.New("mismatched disk and diff layers")
 	}
 	for {
 		var (
diff --git a/core/state_processor.go b/core/state_processor.go
index 03de673e1..4837628e6 100644
--- a/core/state_processor.go
+++ b/core/state_processor.go
@@ -17,6 +17,7 @@
 package core
 
 import (
+	"errors"
 	"fmt"
 	"math/big"
 
@@ -92,7 +93,7 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	// Fail if Shanghai not enabled and len(withdrawals) is non-zero.
 	withdrawals := block.Withdrawals()
 	if len(withdrawals) > 0 && !p.config.IsShanghai(block.Number(), block.Time()) {
-		return nil, nil, 0, fmt.Errorf("withdrawals before shanghai")
+		return nil, nil, 0, errors.New("withdrawals before shanghai")
 	}
 	// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)
 	p.engine.Finalize(p.bc, header, statedb, block.Transactions(), block.Uncles(), withdrawals)
diff --git a/core/types/log_test.go b/core/types/log_test.go
index 0e56acfe4..02eef3ecd 100644
--- a/core/types/log_test.go
+++ b/core/types/log_test.go
@@ -18,7 +18,7 @@ package types
 
 import (
 	"encoding/json"
-	"fmt"
+	"errors"
 	"reflect"
 	"testing"
 
@@ -97,7 +97,7 @@ var unmarshalLogTests = map[string]struct {
 	},
 	"missing data": {
 		input:     `{"address":"0xecf8f87f810ecf450940c9f60066b4a7a501d6a7","blockHash":"0x656c34545f90a730a19008c0e7a7cd4fb3895064b48d6d69761bd5abad681056","blockNumber":"0x1ecfa4","logIndex":"0x2","topics":["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef","0x00000000000000000000000080b2c9d7cbbf30a1b0fc8983c647d754c6525615","0x000000000000000000000000f9dff387dcb5cc4cca5b91adb07a95f54e9f1bb6"],"transactionHash":"0x3b198bfd5d2907285af009e9ae84a0ecd63677110d89d7e030251acb87f6487e","transactionIndex":"0x3"}`,
-		wantError: fmt.Errorf("missing required field 'data' for Log"),
+		wantError: errors.New("missing required field 'data' for Log"),
 	},
 }
 
diff --git a/core/types/transaction_test.go b/core/types/transaction_test.go
index 4b96c6b91..f6442c5a3 100644
--- a/core/types/transaction_test.go
+++ b/core/types/transaction_test.go
@@ -526,7 +526,7 @@ func assertEqual(orig *Transaction, cpy *Transaction) error {
 	}
 	if orig.AccessList() != nil {
 		if !reflect.DeepEqual(orig.AccessList(), cpy.AccessList()) {
-			return fmt.Errorf("access list wrong!")
+			return errors.New("access list wrong!")
 		}
 	}
 	return nil