diff --git a/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPane.java b/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPane.java
index 23d009133aa..53ad7709aa4 100644
--- a/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPane.java
+++ b/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPane.java
@@ -72,14 +72,6 @@ protected Node createContentPane() {
         // Create text field for query input
         TextField query = SearchTextField.create();
         query.getStyleClass().add("searchBar");
-        query.textProperty().addListener((observable, oldValue, newValue) -> viewModel.validateQueryStringAndGiveColorFeedback(query, newValue));
-        query.focusedProperty().addListener((observable, oldValue, newValue) -> {
-            if (newValue) {
-                viewModel.validateQueryStringAndGiveColorFeedback(query, query.getText());
-            } else {
-                viewModel.setPseudoClassToValid(query);
-            }
-        });
 
         viewModel.queryProperty().bind(query.textProperty());
 
diff --git a/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPaneViewModel.java b/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPaneViewModel.java
index 19057d6b1cd..0ef1e6ff233 100644
--- a/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPaneViewModel.java
+++ b/src/main/java/org/jabref/gui/importer/fetcher/WebSearchPaneViewModel.java
@@ -1,8 +1,6 @@
 package org.jabref.gui.importer.fetcher;
 
 import java.util.SortedSet;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 import javafx.beans.property.ListProperty;
 import javafx.beans.property.ObjectProperty;
@@ -12,9 +10,6 @@
 import javafx.beans.property.StringProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
-import javafx.css.PseudoClass;
-import javafx.scene.control.TextField;
-import javafx.scene.control.Tooltip;
 
 import org.jabref.gui.DialogService;
 import org.jabref.gui.StateManager;
@@ -36,8 +31,6 @@ public class WebSearchPaneViewModel {
     private final StringProperty query = new SimpleStringProperty();
     private final DialogService dialogService;
     private final StateManager stateManager;
-    private final Pattern queryPattern;
-    private final Pattern laxQueryPattern;
 
     public WebSearchPaneViewModel(PreferencesService preferencesService, DialogService dialogService, StateManager stateManager) {
         this.dialogService = dialogService;
@@ -57,13 +50,6 @@ public WebSearchPaneViewModel(PreferencesService preferencesService, DialogServi
             int newIndex = fetchers.indexOf(newFetcher);
             preferencesService.storeSidePanePreferences(preferencesService.getSidePanePreferences().withWebSearchFetcherSelected(newIndex));
         });
-
-        String allowedFields = "((author|abstract|journal|title|year|year-range):\\s?)?";
-        // Either a single word, or a phrase with quotes, or a year-range
-        String allowedTermText = "(((\\d{4}-\\d{4})|(\\w+)|(\"\\w+[^\"]*\"))\\s?)+";
-        queryPattern = Pattern.compile("^(" + allowedFields + allowedTermText + ")+$");
-        String laxFields = "(\\w+:\\s?)?";
-        laxQueryPattern = Pattern.compile("^(" + laxFields + allowedTermText + ")+$");
     }
 
     public ObservableList<SearchBasedFetcher> getFetchers() {
@@ -112,41 +98,4 @@ public void search() {
         dialog.setTitle(activeFetcher.getName());
         dialogService.showCustomDialogAndWait(dialog);
     }
-
-    public void validateQueryStringAndGiveColorFeedback(TextField querySource, String queryString) {
-        Matcher queryValidation = queryPattern.matcher(queryString.strip());
-        if (!queryString.strip().isBlank() && !queryValidation.matches()) {
-            Matcher laxQueryValidation = laxQueryPattern.matcher(queryString.strip());
-            if (laxQueryValidation.matches()) {
-                setPseudoClassToUnsupported(querySource);
-                querySource.setTooltip(new Tooltip(Localization.lang("This query uses unsupported fields.")));
-            } else {
-                setPseudoClassToInvalid(querySource);
-                querySource.setTooltip(new Tooltip(Localization.lang("This query uses unsupported syntax.")));
-            }
-        } else if (containsYearAndYearRange(queryString)) {
-            setPseudoClassToInvalid(querySource);
-            querySource.setTooltip(new Tooltip(Localization.lang("The query cannot contain a year and year-range field.")));
-        } else {
-            setPseudoClassToValid(querySource);
-        }
-    }
-
-    private void setPseudoClassToUnsupported(TextField querySource) {
-        querySource.pseudoClassStateChanged(PseudoClass.getPseudoClass("invalid"), false);
-        querySource.pseudoClassStateChanged(PseudoClass.getPseudoClass("unsupported"), true);
-    }
-
-    public void setPseudoClassToValid(TextField querySource) {
-        querySource.pseudoClassStateChanged(PseudoClass.getPseudoClass("invalid"), false);
-        querySource.pseudoClassStateChanged(PseudoClass.getPseudoClass("unsupported"), false);
-    }
-
-    private void setPseudoClassToInvalid(TextField querySource) {
-        querySource.pseudoClassStateChanged(PseudoClass.getPseudoClass("invalid"), true);
-    }
-
-    private boolean containsYearAndYearRange(String queryString) {
-        return queryString.toLowerCase().contains("year:") && queryString.toLowerCase().contains("year-range:");
-    }
 }
diff --git a/src/main/resources/l10n/JabRef_en.properties b/src/main/resources/l10n/JabRef_en.properties
index 442885150c7..df1723177bc 100644
--- a/src/main/resources/l10n/JabRef_en.properties
+++ b/src/main/resources/l10n/JabRef_en.properties
@@ -2264,9 +2264,6 @@ Remove\ redundant\ spaces=Remove redundant spaces
 Replaces\ consecutive\ spaces\ with\ a\ single\ space\ in\ the\ field\ content.=Replaces consecutive spaces with a single space in the field content.
 Remove\ digits=Remove digits
 Removes\ digits.=Removes digits.
-The\ query\ cannot\ contain\ a\ year\ and\ year-range\ field.=The query cannot contain a year and year-range field.
-This\ query\ uses\ unsupported\ fields.=This query uses unsupported fields.
-This\ query\ uses\ unsupported\ syntax.=This query uses unsupported syntax.
 
 Presets=Presets