diff --git a/javascript/extensions.js b/javascript/extensions.js
index 72924a28cf9acde351b83be6c9d832eba0069d2a..c27864998c711c4d4f6e7b471c4e53f837a2c5e1 100644
--- a/javascript/extensions.js
+++ b/javascript/extensions.js
@@ -47,3 +47,19 @@ function install_extension_from_index(button, url){
 
     gradioApp().querySelector('#install_extension_button').click()
 }
+
+function config_state_confirm_restore(_, config_state_name, config_restore_type) {
+    if (config_state_name == "Current") {
+        return [false, config_state_name];
+    }
+    let restored = "";
+    if (config_restore_type == "extensions") {
+        restored = "all saved extension versions";
+    } else if (config_restore_type == "webui") {
+        restored = "the webui version";
+    } else {
+        restored = "the webui version and all saved extension versions";
+    }
+    let confirmed = confirm("Are you sure you want to restore from this state?\nThis will reset " + restored + ".\n(A backup of the current state will be made.)");
+    return [confirmed, config_state_name, config_restore_type];
+}
diff --git a/modules/extensions.py b/modules/extensions.py
index 3a7a037278757e3bf01e03d1b097bd2f4bcc4108..a87beaa376064c7bd72d3569c535b5607977e87a 100644
--- a/modules/extensions.py
+++ b/modules/extensions.py
@@ -3,10 +3,11 @@ import sys
 import traceback
 
 import time
+from datetime import datetime
 import git
 
 from modules import shared
-from modules.paths_internal import extensions_dir, extensions_builtin_dir
+from modules.paths_internal import extensions_dir, extensions_builtin_dir, script_path
 
 extensions = []
 
@@ -31,12 +32,15 @@ class Extension:
         self.status = ''
         self.can_update = False
         self.is_builtin = is_builtin
+        self.commit_hash = ''
+        self.commit_date = None
         self.version = ''
+        self.branch = None
         self.remote = None
         self.have_info_from_repo = False
 
     def read_info_from_repo(self):
-        if self.have_info_from_repo:
+        if self.is_builtin or self.have_info_from_repo:
             return
 
         self.have_info_from_repo = True
@@ -56,10 +60,15 @@ class Extension:
                 self.status = 'unknown'
                 self.remote = next(repo.remote().urls, None)
                 head = repo.head.commit
-                ts = time.asctime(time.gmtime(repo.head.commit.committed_date))
-                self.version = f'{head.hexsha[:8]} ({ts})'
-
-            except Exception:
+                self.commit_date = repo.head.commit.committed_date
+                ts = time.asctime(time.gmtime(self.commit_date))
+                if repo.active_branch:
+                    self.branch = repo.active_branch.name
+                self.commit_hash = head.hexsha
+                self.version = f'{self.commit_hash[:8]} ({ts})'
+
+            except Exception as ex:
+                print(f"Failed reading extension data from Git repository ({self.name}): {ex}", file=sys.stderr)
                 self.remote = None
 
     def list_files(self, subdir, extension):
@@ -88,12 +97,12 @@ class Extension:
         self.can_update = False
         self.status = "latest"
 
-    def fetch_and_reset_hard(self):
+    def fetch_and_reset_hard(self, commit='origin'):
         repo = git.Repo(self.path)
         # Fix: `error: Your local changes to the following files would be overwritten by merge`,
         # because WSL2 Docker set 755 file permissions instead of 644, this results to the error.
         repo.git.fetch(all=True)
-        repo.git.reset('origin', hard=True)
+        repo.git.reset(commit, hard=True)
 
 
 def list_extensions():
diff --git a/modules/paths_internal.py b/modules/paths_internal.py
index 926ec3bbff82512c0510a877bc8e9454e644b146..6765bafe016f6881383ab82d4b060473ff457546 100644
--- a/modules/paths_internal.py
+++ b/modules/paths_internal.py
@@ -20,3 +20,4 @@ data_path = cmd_opts_pre.data_dir
 models_path = os.path.join(data_path, "models")
 extensions_dir = os.path.join(data_path, "extensions")
 extensions_builtin_dir = os.path.join(script_path, "extensions-builtin")
+config_states_dir = os.path.join(script_path, "config_states")
diff --git a/modules/shared.py b/modules/shared.py
index 5fd0eecbd1fe45ace0ff62970fb9e7f1b9e4430b..ffc5e4fe43ba23af028969b10c946480d47daefa 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -424,6 +424,7 @@ options_templates.update(options_section(('postprocessing', "Postprocessing"), {
 options_templates.update(options_section((None, "Hidden options"), {
     "disabled_extensions": OptionInfo([], "Disable these extensions"),
     "disable_all_extensions": OptionInfo("none", "Disable all extensions (preserves the list of disabled extensions)", gr.Radio, {"choices": ["none", "extra", "all"]}),
+    "restore_config_state_file": OptionInfo("", "Config state file to restore from, under 'config-states/' folder"),
     "sd_checkpoint_hash": OptionInfo("", "SHA256 hash of the current checkpoint"),
 }))
 
diff --git a/modules/ui_extensions.py b/modules/ui_extensions.py
index efd6cda2889e2725a99823bc2320298bb798abbc..ed677b3ec19f24c31567d3757ca865b75d6ffc5f 100644
--- a/modules/ui_extensions.py
+++ b/modules/ui_extensions.py
@@ -2,6 +2,7 @@ import json
 import os.path
 import sys
 import time
+from datetime import datetime
 import traceback
 
 import git
@@ -11,7 +12,8 @@ import html
 import shutil
 import errno
 
-from modules import extensions, shared, paths
+from modules import extensions, shared, paths, config_states
+from modules.paths_internal import config_states_dir
 from modules.call_queue import wrap_gradio_gpu_call
 
 available_extensions = {"extensions": []}
@@ -30,6 +32,9 @@ def apply_and_restart(disable_list, update_list, disable_all):
     update = json.loads(update_list)
     assert type(update) == list, f"wrong update_list data for apply_and_restart: {update_list}"
 
+    if update:
+        save_config_state("Backup (pre-update)")
+
     update = set(update)
 
     for ext in extensions.extensions:
@@ -50,6 +55,48 @@ def apply_and_restart(disable_list, update_list, disable_all):
     shared.state.need_restart = True
 
 
+def save_config_state(name):
+    current_config_state = config_states.get_config()
+    if not name:
+        name = "Config"
+    current_config_state["name"] = name
+    filename = os.path.join(config_states_dir, datetime.now().strftime("%Y_%m_%d-%H_%M_%S") + ".json")
+    print(f"Saving backup of webui/extension state to {filename}.")
+    with open(filename, "w", encoding="utf-8") as f:
+        json.dump(current_config_state, f)
+    config_states.list_config_states()
+    new_value = next(iter(config_states.all_config_states.keys()), "Current")
+    new_choices = ["Current"] + list(config_states.all_config_states.keys())
+    return gr.Dropdown.update(value=new_value, choices=new_choices), f"<span>Saved current webui/extension state to '{filename}'</span>"
+
+
+def restore_config_state(confirmed, config_state_name, restore_type):
+    if config_state_name == "Current":
+        return "<span>Select a config to restore from.</span>"
+    if not confirmed:
+        return "<span>Cancelled.</span>"
+
+    check_access()
+
+    save_config_state("Backup (pre-restore)")
+
+    config_state = config_states.all_config_states[config_state_name]
+
+    print(f"Restoring webui state from backup: {restore_type}")
+
+    if restore_type == "extensions" or restore_type == "both":
+        shared.opts.restore_config_state_file = config_state["filename"]
+        shared.opts.save(shared.config_filename)
+
+    if restore_type == "webui" or restore_type == "both":
+        config_states.restore_webui_config(config_state)
+
+    shared.state.interrupt()
+    shared.state.need_restart = True
+
+    return ""
+
+
 def check_updates(id_task, disable_list):
     check_access()
 
@@ -121,6 +168,117 @@ def extension_table():
     return code
 
 
+def update_config_states_table(state_name):
+    if state_name == "Current":
+        config_state = config_states.get_config()
+    else:
+        config_state = config_states.all_config_states[state_name]
+
+    config_name = config_state.get("name", "Config")
+    created_date = time.asctime(time.gmtime(config_state["created_at"]))
+
+    code = f"""<!-- {time.time()} -->"""
+
+    webui_remote = config_state["webui"]["remote"] or ""
+    webui_branch = config_state["webui"]["branch"]
+    webui_commit_hash = config_state["webui"]["commit_hash"]
+    if webui_commit_hash:
+        webui_commit_hash = webui_commit_hash[:8]
+    else:
+        webui_commit_hash = "<unknown>"
+    webui_commit_date = config_state["webui"]["commit_date"]
+    if webui_commit_date:
+        webui_commit_date = time.asctime(time.gmtime(webui_commit_date))
+    else:
+        webui_commit_date = "<unknown>"
+
+    code += f"""<h2>Config Backup: {config_name}</h2>
+      <span>Created at: {created_date}</span>"""
+
+    code += f"""<h2>WebUI State</h2>
+      <table id="config_state_webui">
+        <thead>
+            <tr>
+                <th>URL</th>
+                <th>Branch</th>
+                <th>Commit</th>
+                <th>Date</th>
+            </tr>
+        </thead>
+        <tbody>
+            <tr>
+                <td>{webui_remote}</td>
+                <td>{webui_branch}</td>
+                <td>{webui_commit_hash}</td>
+                <td>{webui_commit_date}</td>
+            </tr>
+        </tbody>
+      </table>
+    """
+
+    code += """<h2>Extension State</h2>
+      <table id="config_state_extensions">
+        <thead>
+            <tr>
+                <th>Extension</th>
+                <th>URL</th>
+                <th>Branch</th>
+                <th>Commit</th>
+                <th>Date</th>
+            </tr>
+        </thead>
+        <tbody>
+    """
+
+    ext_map = {ext.name: ext for ext in extensions.extensions}
+
+    for ext_name, ext_conf in config_state["extensions"].items():
+        ext_remote = ext_conf["remote"] or ""
+        ext_branch = ext_conf["branch"] or "<unknown>"
+        ext_enabled = ext_conf["enabled"]
+        ext_commit_hash = ext_conf["commit_hash"] or "<unknown>"
+        ext_commit_date = ext_conf["commit_date"]
+        if ext_commit_date:
+            ext_commit_date = time.asctime(time.gmtime(ext_commit_date))
+        else:
+            ext_commit_date = "<unknown>"
+
+        remote = f"""<a href="{html.escape(ext_remote)}" target="_blank">{html.escape(ext_remote or '')}</a>"""
+
+        style_enabled = ""
+        style_remote = ""
+        style_branch = ""
+        style_commit = ""
+        if ext_name in ext_map:
+            current_ext = ext_map[ext_name]
+            current_ext.read_info_from_repo()
+            if current_ext.enabled != ext_enabled:
+                style_enabled = ' style="color: var(--primary-400)"'
+            if current_ext.remote != ext_remote:
+                style_remote = ' style="color: var(--primary-400)"'
+            if current_ext.branch != ext_branch:
+                style_branch = ' style="color: var(--primary-400)"'
+            if current_ext.commit_hash != ext_commit_hash:
+                style_commit = ' style="color: var(--primary-400)"'
+
+        code += f"""
+            <tr>
+                <td><label{style_enabled}><input class="gr-check-radio gr-checkbox" type="checkbox" disabled="true" {'checked="checked"' if ext_enabled else ''}>{html.escape(ext_name)}</label></td>
+                <td><label{style_remote}>{remote}</label></td>
+                <td><label{style_branch}>{ext_branch}</label></td>
+                <td><label{style_commit}>{ext_commit_hash[:8]}</label></td>
+                <td><label{style_commit}>{ext_commit_date}</label></td>
+            </tr>
+    """
+
+    code += """
+        </tbody>
+    </table>
+    """
+
+    return code
+
+
 def normalize_git_url(url):
     if url is None:
         return ""
@@ -292,6 +450,8 @@ def refresh_available_extensions_from_data(hide_tags, sort_column, filter_text="
 def create_ui():
     import modules.ui
 
+    config_states.list_config_states()
+
     with gr.Blocks(analytics_enabled=False) as ui:
         with gr.Tabs(elem_id="tabs_extensions") as tabs:
             with gr.TabItem("Installed"):
@@ -386,4 +546,28 @@ def create_ui():
                     outputs=[extensions_table, install_result],
                 )
 
+            with gr.TabItem("Backup/Restore"):
+                with gr.Row(elem_id="extensions_backup_top_row"):
+                    config_states_list = gr.Dropdown(label="Saved Configs", elem_id="extension_backup_saved_configs", value="Current", choices=["Current"] + list(config_states.all_config_states.keys()))
+                    modules.ui.create_refresh_button(config_states_list, config_states.list_config_states, lambda: {"choices": ["Current"] + list(config_states.all_config_states.keys())}, "refresh_config_states")
+                    config_restore_type = gr.Radio(label="State to restore", choices=["extensions", "webui", "both"], value="extensions", elem_id="extension_backup_restore_type")
+                    config_restore_button = gr.Button(value="Restore Selected Config", variant="primary", elem_id="extension_backup_restore")
+                with gr.Row(elem_id="extensions_backup_top_row2"):
+                    config_save_name = gr.Textbox("", placeholder="Config Name", show_label=False)
+                    config_save_button = gr.Button(value="Save Current Config")
+
+                config_states_info = gr.HTML("")
+                config_states_table = gr.HTML(lambda: update_config_states_table("Current"))
+
+                config_save_button.click(fn=save_config_state, inputs=[config_save_name], outputs=[config_states_list, config_states_info])
+
+                dummy_component = gr.Label(visible=False)
+                config_restore_button.click(fn=restore_config_state, _js="config_state_confirm_restore", inputs=[dummy_component, config_states_list, config_restore_type], outputs=[config_states_info])
+
+                config_states_list.change(
+                    fn=update_config_states_table,
+                    inputs=[config_states_list],
+                    outputs=[config_states_table],
+                )
+
     return ui
diff --git a/webui.py b/webui.py
index b570895fb2c5bc6e4772ed7ae0907ca1478f9f06..b8f9a2c1ce4b082b017c92642b445b35fde7720f 100644
--- a/webui.py
+++ b/webui.py
@@ -5,6 +5,7 @@ import importlib
 import signal
 import re
 import warnings
+import json
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.middleware.gzip import GZipMiddleware
@@ -37,7 +38,7 @@ if ".dev" in torch.__version__ or "+git" in torch.__version__:
     torch.__long_version__ = torch.__version__
     torch.__version__ = re.search(r'[\d.]+[\d]', torch.__version__).group(0)
 
-from modules import shared, devices, sd_samplers, upscaler, extensions, localization, ui_tempdir, ui_extra_networks
+from modules import shared, devices, sd_samplers, upscaler, extensions, localization, ui_tempdir, ui_extra_networks, config_states
 import modules.codeformer_model as codeformer
 import modules.face_restoration
 import modules.gfpgan_model as gfpgan
@@ -105,6 +106,17 @@ def initialize():
     localization.list_localizations(cmd_opts.localizations_dir)
     startup_timer.record("list extensions")
 
+    config_state_file = shared.opts.restore_config_state_file
+    shared.opts.restore_config_state_file = ""
+    shared.opts.save(shared.config_filename)
+
+    if os.path.isfile(config_state_file):
+        print(f"*** About to restore extension state from file: {config_state_file}")
+        with open(config_state_file, "r", encoding="utf-8") as f:
+            config_state = json.load(f)
+            config_states.restore_extension_state(config_state)
+        startup_timer.record("restore extension config")
+
     if cmd_opts.ui_debug_mode:
         shared.sd_upscalers = upscaler.UpscalerLanczos().scalers
         modules.scripts.load_scripts()
@@ -301,6 +313,17 @@ def webui():
         extensions.list_extensions()
         startup_timer.record("list extensions")
 
+        config_state_file = shared.opts.restore_config_state_file
+        shared.opts.restore_config_state_file = ""
+        shared.opts.save(shared.config_filename)
+
+        if os.path.isfile(config_state_file):
+            print(f"*** About to restore extension state from file: {config_state_file}")
+            with open(config_state_file, "r", encoding="utf-8") as f:
+                config_state = json.load(f)
+                config_states.restore_extension_state(config_state)
+            startup_timer.record("restore extension config")
+
         localization.list_localizations(cmd_opts.localizations_dir)
 
         modelloader.forbid_loaded_nonbuiltin_upscalers()