diff --git a/res/css/_components.scss b/res/css/_components.scss
index 56403ea190..ec3af8655e 100644
--- a/res/css/_components.scss
+++ b/res/css/_components.scss
@@ -123,7 +123,6 @@
 @import "./views/elements/_EventListSummary.scss";
 @import "./views/elements/_FacePile.scss";
 @import "./views/elements/_Field.scss";
-@import "./views/elements/_FormButton.scss";
 @import "./views/elements/_ImageView.scss";
 @import "./views/elements/_InfoTooltip.scss";
 @import "./views/elements/_InlineSpinner.scss";
diff --git a/res/css/structures/_ToastContainer.scss b/res/css/structures/_ToastContainer.scss
index 09f834a6e3..14e4c01389 100644
--- a/res/css/structures/_ToastContainer.scss
+++ b/res/css/structures/_ToastContainer.scss
@@ -134,8 +134,9 @@ limitations under the License.
         .mx_Toast_buttons {
             float: right;
             display: flex;
+            gap: 5px;
 
-            .mx_FormButton {
+            .mx_AccessibleButton {
                 min-width: 96px;
                 box-sizing: border-box;
             }
diff --git a/res/css/views/elements/_FormButton.scss b/res/css/views/elements/_FormButton.scss
deleted file mode 100644
index eda201ff03..0000000000
--- a/res/css/views/elements/_FormButton.scss
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
-Copyright 2019 The Matrix.org Foundation C.I.C.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-.mx_FormButton {
-    line-height: $font-16px;
-    padding: 5px 15px;
-    font-size: $font-12px;
-    height: min-content;
-
-    &:not(:last-child) {
-        margin-right: 8px;
-    }
-
-    &.mx_AccessibleButton_kind_primary {
-        color: $accent-color;
-        background-color: $accent-bg-color;
-    }
-
-    &.mx_AccessibleButton_kind_danger {
-        color: $notice-primary-color;
-        background-color: $notice-primary-bg-color;
-    }
-
-    &.mx_AccessibleButton_kind_secondary {
-        color: $secondary-fg-color;
-        border: 1px solid $secondary-fg-color;
-        background-color: unset;
-    }
-}
diff --git a/res/css/views/right_panel/_UserInfo.scss b/res/css/views/right_panel/_UserInfo.scss
index 87420ae4e7..6632ccddf9 100644
--- a/res/css/views/right_panel/_UserInfo.scss
+++ b/res/css/views/right_panel/_UserInfo.scss
@@ -259,16 +259,6 @@ limitations under the License.
 
     .mx_AccessibleButton.mx_AccessibleButton_hasKind {
         padding: 8px 18px;
-
-        &.mx_AccessibleButton_kind_primary {
-            color: $accent-color;
-            background-color: $accent-bg-color;
-        }
-
-        &.mx_AccessibleButton_kind_danger {
-            color: $notice-primary-color;
-            background-color: $notice-primary-bg-color;
-        }
     }
 
     .mx_VerificationShowSas .mx_AccessibleButton,
diff --git a/res/css/views/right_panel/_VerificationPanel.scss b/res/css/views/right_panel/_VerificationPanel.scss
index a8466a1626..12148b09de 100644
--- a/res/css/views/right_panel/_VerificationPanel.scss
+++ b/res/css/views/right_panel/_VerificationPanel.scss
@@ -58,7 +58,7 @@ limitations under the License.
     }
 
     .mx_VerificationPanel_reciprocate_section {
-        .mx_FormButton {
+        .mx_AccessibleButton {
             width: 100%;
             box-sizing: border-box;
             padding: 10px;
diff --git a/res/css/views/spaces/_SpaceBasicSettings.scss b/res/css/views/spaces/_SpaceBasicSettings.scss
index 204ccab2b7..32454b9530 100644
--- a/res/css/views/spaces/_SpaceBasicSettings.scss
+++ b/res/css/views/spaces/_SpaceBasicSettings.scss
@@ -73,7 +73,7 @@ limitations under the License.
         }
     }
 
-    .mx_FormButton {
+    .mx_AccessibleButton {
         padding: 8px 22px;
         margin-left: auto;
         display: block;
diff --git a/src/components/views/elements/FormButton.js b/src/components/views/elements/FormButton.js
deleted file mode 100644
index f6b4c986f5..0000000000
--- a/src/components/views/elements/FormButton.js
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-Copyright 2019 The Matrix.org Foundation C.I.C.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-import React from 'react';
-import AccessibleButton from "./AccessibleButton";
-
-export default function FormButton(props) {
-    const {className, label, kind, ...restProps} = props;
-    const newClassName = (className || "") + " mx_FormButton";
-    const allProps = Object.assign({}, restProps,
-        {className: newClassName, kind: kind || "primary", children: [label]});
-    return React.createElement(AccessibleButton, allProps);
-}
-
-FormButton.propTypes = AccessibleButton.propTypes;
diff --git a/src/components/views/messages/MKeyVerificationRequest.js b/src/components/views/messages/MKeyVerificationRequest.tsx
similarity index 76%
rename from src/components/views/messages/MKeyVerificationRequest.js
rename to src/components/views/messages/MKeyVerificationRequest.tsx
index 988606a766..69467cfa50 100644
--- a/src/components/views/messages/MKeyVerificationRequest.js
+++ b/src/components/views/messages/MKeyVerificationRequest.tsx
@@ -15,41 +15,40 @@ limitations under the License.
 */
 
 import React from 'react';
-import PropTypes from 'prop-types';
-import {MatrixClientPeg} from '../../../MatrixClientPeg';
+import { MatrixEvent } from 'matrix-js-sdk/src';
+import { MatrixClientPeg } from '../../../MatrixClientPeg';
 import * as sdk from '../../../index';
 import { _t } from '../../../languageHandler';
-import {getNameForEventRoom, userLabelForEventRoom}
+import { getNameForEventRoom, userLabelForEventRoom }
     from '../../../utils/KeyVerificationStateObserver';
 import dis from "../../../dispatcher/dispatcher";
-import {RightPanelPhases} from "../../../stores/RightPanelStorePhases";
-import {Action} from "../../../dispatcher/actions";
+import { RightPanelPhases } from "../../../stores/RightPanelStorePhases";
+import { Action } from "../../../dispatcher/actions";
 import EventTileBubble from "./EventTileBubble";
-import {replaceableComponent} from "../../../utils/replaceableComponent";
+import { replaceableComponent } from "../../../utils/replaceableComponent";
+
+interface IProps {
+    mxEvent: MatrixEvent
+}
 
 @replaceableComponent("views.messages.MKeyVerificationRequest")
-export default class MKeyVerificationRequest extends React.Component {
-    constructor(props) {
-        super(props);
-        this.state = {};
-    }
-
-    componentDidMount() {
+export default class MKeyVerificationRequest extends React.Component<IProps> {
+    public componentDidMount() {
         const request = this.props.mxEvent.verificationRequest;
         if (request) {
-            request.on("change", this._onRequestChanged);
+            request.on("change", this.onRequestChanged);
         }
     }
 
-    componentWillUnmount() {
+    public componentWillUnmount() {
         const request = this.props.mxEvent.verificationRequest;
         if (request) {
-            request.off("change", this._onRequestChanged);
+            request.off("change", this.onRequestChanged);
         }
     }
 
-    _openRequest = () => {
-        const {verificationRequest} = this.props.mxEvent;
+    private openRequest = () => {
+        const { verificationRequest } = this.props.mxEvent;
         const member = MatrixClientPeg.get().getUser(verificationRequest.otherUserId);
         dis.dispatch({
             action: Action.SetRightPanelPhase,
@@ -58,15 +57,15 @@ export default class MKeyVerificationRequest extends React.Component {
         });
     };
 
-    _onRequestChanged = () => {
+    private onRequestChanged = () => {
         this.forceUpdate();
     };
 
-    _onAcceptClicked = async () => {
+    private onAcceptClicked = async () => {
         const request = this.props.mxEvent.verificationRequest;
         if (request) {
             try {
-                this._openRequest();
+                this.openRequest();
                 await request.accept();
             } catch (err) {
                 console.error(err.message);
@@ -74,7 +73,7 @@ export default class MKeyVerificationRequest extends React.Component {
         }
     };
 
-    _onRejectClicked = async () => {
+    private onRejectClicked = async () => {
         const request = this.props.mxEvent.verificationRequest;
         if (request) {
             try {
@@ -85,7 +84,7 @@ export default class MKeyVerificationRequest extends React.Component {
         }
     };
 
-    _acceptedLabel(userId) {
+    private acceptedLabel(userId: string) {
         const client = MatrixClientPeg.get();
         const myUserId = client.getUserId();
         if (userId === myUserId) {
@@ -95,7 +94,7 @@ export default class MKeyVerificationRequest extends React.Component {
         }
     }
 
-    _cancelledLabel(userId) {
+    private cancelledLabel(userId: string) {
         const client = MatrixClientPeg.get();
         const myUserId = client.getUserId();
         const {cancellationCode} = this.props.mxEvent.verificationRequest;
@@ -115,9 +114,8 @@ export default class MKeyVerificationRequest extends React.Component {
         }
     }
 
-    render() {
+    public render() {
         const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
-        const FormButton = sdk.getComponent("elements.FormButton");
 
         const {mxEvent} = this.props;
         const request = mxEvent.verificationRequest;
@@ -134,11 +132,11 @@ export default class MKeyVerificationRequest extends React.Component {
             let stateLabel;
             const accepted = request.ready || request.started || request.done;
             if (accepted) {
-                stateLabel = (<AccessibleButton onClick={this._openRequest}>
-                    {this._acceptedLabel(request.receivingUserId)}
+                stateLabel = (<AccessibleButton onClick={this.openRequest}>
+                    {this.acceptedLabel(request.receivingUserId)}
                 </AccessibleButton>);
             } else if (request.cancelled) {
-                stateLabel = this._cancelledLabel(request.cancellingUserId);
+                stateLabel = this.cancelledLabel(request.cancellingUserId);
             } else if (request.accepting) {
                 stateLabel = _t("Accepting …");
             } else if (request.declining) {
@@ -153,8 +151,12 @@ export default class MKeyVerificationRequest extends React.Component {
             subtitle = userLabelForEventRoom(request.requestingUserId, mxEvent.getRoomId());
             if (request.canAccept) {
                 stateNode = (<div className="mx_cryptoEvent_buttons">
-                    <FormButton kind="danger" onClick={this._onRejectClicked} label={_t("Decline")} />
-                    <FormButton onClick={this._onAcceptClicked} label={_t("Accept")} />
+                    <AccessibleButton kind="danger" onClick={this.onRejectClicked}>
+                        {_t("Decline")}
+                    </AccessibleButton>
+                    <AccessibleButton onClick={this.onAcceptClicked}>
+                        {_t("Accept")}
+                    </AccessibleButton>
                 </div>);
             }
         } else { // request sent by us
@@ -174,8 +176,3 @@ export default class MKeyVerificationRequest extends React.Component {
         return null;
     }
 }
-
-MKeyVerificationRequest.propTypes = {
-    /* the MatrixEvent to show */
-    mxEvent: PropTypes.object.isRequired,
-};
diff --git a/src/components/views/right_panel/VerificationPanel.tsx b/src/components/views/right_panel/VerificationPanel.tsx
index edfe0e3483..d3f2ba8cbf 100644
--- a/src/components/views/right_panel/VerificationPanel.tsx
+++ b/src/components/views/right_panel/VerificationPanel.tsx
@@ -195,14 +195,7 @@ export default class VerificationPanel extends React.PureComponent<IProps, IStat
 
     private renderQRReciprocatePhase() {
         const {member, request} = this.props;
-        let Button;
-        // a bit of a hack, but the FormButton should only be used in the right panel
-        // they should probably just be the same component with a css class applied to it?
-        if (this.props.inDialog) {
-            Button = sdk.getComponent("elements.AccessibleButton");
-        } else {
-            Button = sdk.getComponent("elements.FormButton");
-        }
+        const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
         const description = request.isSelfVerification ?
             _t("Almost there! Is your other session showing the same shield?") :
             _t("Almost there! Is %(displayName)s showing the same shield?", {
@@ -211,21 +204,24 @@ export default class VerificationPanel extends React.PureComponent<IProps, IStat
         let body: JSX.Element;
         if (this.state.reciprocateQREvent) {
             // Element Web doesn't support scanning yet, so assume here we're the client being scanned.
-            //
-            // we're passing both a label and a child string to Button as
-            // FormButton and AccessibleButton expect this differently
             body = <React.Fragment>
                 <p>{description}</p>
                 <E2EIcon isUser={true} status="verified" size={128} hideTooltip={true} />
                 <div className="mx_VerificationPanel_reciprocateButtons">
-                    <Button
-                        label={_t("No")} kind="danger"
+                    <AccessibleButton
+                        kind="danger"
                         disabled={this.state.reciprocateButtonClicked}
-                        onClick={this.onReciprocateNoClick}>{_t("No")}</Button>
-                    <Button
-                        label={_t("Yes")} kind="primary"
+                        onClick={this.onReciprocateNoClick}
+                    >
+                        { _t("No") }
+                    </AccessibleButton>
+                    <AccessibleButton
+                        kind="primary"
                         disabled={this.state.reciprocateButtonClicked}
-                        onClick={this.onReciprocateYesClick}>{_t("Yes")}</Button>
+                        onClick={this.onReciprocateYesClick}
+                    >
+                        { _t("Yes") }
+                    </AccessibleButton>
                 </div>
             </React.Fragment>;
         } else {
diff --git a/src/components/views/toasts/GenericToast.tsx b/src/components/views/toasts/GenericToast.tsx
index 209babbf9d..45b65ae1fb 100644
--- a/src/components/views/toasts/GenericToast.tsx
+++ b/src/components/views/toasts/GenericToast.tsx
@@ -15,8 +15,8 @@ limitations under the License.
 */
 
 import React, {ReactNode} from "react";
+import AccessibleButton from "../elements/AccessibleButton";
 
-import FormButton from "../elements/FormButton";
 import {XOR} from "../../../@types/common";
 
 export interface IProps {
@@ -50,8 +50,12 @@ const GenericToast: React.FC<XOR<IPropsExtended, IProps>> = ({
             {detailContent}
         </div>
         <div className="mx_Toast_buttons" aria-live="off">
-            {onReject && rejectLabel && <FormButton label={rejectLabel} kind="danger" onClick={onReject} /> }
-            <FormButton label={acceptLabel} onClick={onAccept} />
+            {onReject && rejectLabel && <AccessibleButton kind="danger" onClick={onReject}>
+                { rejectLabel }
+            </AccessibleButton> }
+            <AccessibleButton onClick={onAccept} kind="primary">
+                { acceptLabel }
+            </AccessibleButton>
         </div>
     </div>;
 };
diff --git a/src/components/views/voip/IncomingCallBox.tsx b/src/components/views/voip/IncomingCallBox.tsx
index a0660318bc..c09043da24 100644
--- a/src/components/views/voip/IncomingCallBox.tsx
+++ b/src/components/views/voip/IncomingCallBox.tsx
@@ -23,7 +23,7 @@ import { _t } from '../../../languageHandler';
 import { ActionPayload } from '../../../dispatcher/payloads';
 import CallHandler, { AudioID } from '../../../CallHandler';
 import RoomAvatar from '../avatars/RoomAvatar';
-import FormButton from '../elements/FormButton';
+import AccessibleButton from '../elements/AccessibleButton';
 import { CallState } from 'matrix-js-sdk/src/webrtc/call';
 import {replaceableComponent} from "../../../utils/replaceableComponent";
 import AccessibleTooltipButton from '../elements/AccessibleTooltipButton';
@@ -143,21 +143,22 @@ export default class IncomingCallBox extends React.Component<IProps, IState> {
                 />
             </div>
             <div className="mx_IncomingCallBox_buttons">
-                <FormButton
+                <AccessibleButton
                     className={"mx_IncomingCallBox_decline"}
                     onClick={this.onRejectClick}
                     kind="danger"
-                    label={_t("Decline")}
-                />
+                >
+                    { _t("Decline") }
+                </AccessibleButton>
                 <div className="mx_IncomingCallBox_spacer" />
-                <FormButton
+                <AccessibleButton
                     className={"mx_IncomingCallBox_accept"}
                     onClick={this.onAnswerClick}
                     kind="primary"
-                    label={_t("Accept")}
-                />
+                >
+                    { _t("Accept") }
+                </AccessibleButton>
             </div>
         </div>;
     }
 }
-