diff --git a/modules/compose.mjs b/modules/compose.mjs
index e1188cf..b88cff3 100644
--- a/modules/compose.mjs
+++ b/modules/compose.mjs
@@ -19,6 +19,7 @@ const positionBeforeBegin = 'beforebegin';
 const positionAfterBegin = 'afterbegin';
 const fwdHdrLookupString = '-------- ';
 const plainTextFirstChars = '> ';
+const cleanBlockQuoteStyle = 'border:none !important; padding-left:0px !important; margin-left:0px !important;';
 
 export async function process(tab) {
     rwhLogger.debug(`tab.id=${tab.id}, tab.type=${tab.type}, tab.mailTab=${tab.mailTab}`);
@@ -176,6 +177,17 @@ class ReplyWithHeader {
         // put back the cleaned up <br> tags as-is
         if (this.isReply) {
             div.insertAdjacentElement(positionAfterBegin, this._createElement('br'));
+
+            // blockquote
+            if (await rwhSettings.isCleanAllBlockQuoteColor()) { // all
+                let bqs = this._getAllByTagName('blockquote');
+                for (let b of bqs) {
+                    b.setAttribute('style', cleanBlockQuoteStyle);
+                }
+            } else if (await rwhSettings.isCleanBlockQuoteColor()) { // first level
+                let bq = this._getByTagName('blockquote');
+                bq.setAttribute('style', cleanBlockQuoteStyle);
+            }
         }
         if (this.isForward) {
             let mozForwardContainer = this._getByClassName('moz-forward-container');
@@ -183,12 +195,6 @@ class ReplyWithHeader {
             mozForwardContainer.insertAdjacentElement(positionAfterBegin, this._createElement('br'));
         }
 
-        // blockquote
-        if (await rwhSettings.isCleanBlockQuoteColor() && this.isReply) {
-            let bq = this._getByTagName('blockquote');
-            bq.setAttribute('style', 'border:none !important;padding-left:0 !important;');
-        }
-
         return {
             body: new XMLSerializer().serializeToString(this.#document),
         }
@@ -410,7 +416,11 @@ class ReplyWithHeader {
     }
 
     _getByTagName(tagName) {
-        return this.#document?.getElementsByTagName(tagName)?.[0];
+        return this._getAllByTagName(tagName)?.[0];
+    }
+
+    _getAllByTagName(tagName) {
+        return this.#document?.getElementsByTagName(tagName);
     }
 
     _createElement(tagName) {
diff --git a/modules/settings.mjs b/modules/settings.mjs
index e96ab5b..0e7c5aa 100755
--- a/modules/settings.mjs
+++ b/modules/settings.mjs
@@ -37,6 +37,7 @@ let keyHeaderHtmlPrefixLine = 'header.html.prefix.line';
 let keyHeaderHtmlPrefixLineColor = 'header.html.prefix.line.color';
 let keyTransSubjectPrefix = 'trans.subject.prefix';
 let keyCleanBlockQuoteColor = 'clean.blockquote.color';
+let keyCleanAllBlockQuoteColor = 'clean.blockquote.all.color';
 let keyCleanQuoteCharGreaterThan = 'clean.quote.char.greaterthan';
 
 let rwhDefaultSettings = {
@@ -63,6 +64,7 @@ let rwhDefaultSettings = {
     [keyHeaderTimeZone]: true,
 
     [keyCleanBlockQuoteColor]: true,
+    [keyCleanAllBlockQuoteColor]: false,
     [keyCleanQuoteCharGreaterThan]: true,
 }
 
@@ -157,6 +159,10 @@ export async function isCleanBlockQuoteColor() {
     return await get(keyCleanBlockQuoteColor, rwhDefaultSettings[keyCleanBlockQuoteColor]);
 }
 
+export async function isCleanAllBlockQuoteColor() {
+    return await get(keyCleanAllBlockQuoteColor, rwhDefaultSettings[keyCleanAllBlockQuoteColor]);
+}
+
 export async function isCleanQuoteCharGreaterThan() {
     return await get(keyCleanQuoteCharGreaterThan, rwhDefaultSettings[keyCleanQuoteCharGreaterThan]);
 }
diff --git a/options/options.html b/options/options.html
index 2913c1e..46294fa 100644
--- a/options/options.html
+++ b/options/options.html
@@ -104,7 +104,13 @@
                     <div class="hbox">
                         <label>
                             <input type="checkbox" id="cleanBlockQuoteColor" data-preference="clean.blockquote.color" />
-                            Cleanup first level blockquote color
+                            Cleanup first level blockquote alignment and color
+                        </label>
+                    </div>
+                    <div class="hbox" style="padding-left: 25px;">
+                        <label>
+                            <input type="checkbox" id="cleanAllBlockQuoteColor" data-preference="clean.blockquote.all.color" />
+                            Cleanup all level blockquote alignment and color
                         </label>
                     </div>
                     <div class="hbox">