diff --git a/.gitignore b/.gitignore
index f247a0d..a5871a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 node_modules
 .web-extension-id
-sign.sh
 web-ext-artifacts/
+sign-firefox-extension.sh
diff --git a/README.md b/README.md
index 424227f..8ec342a 100644
--- a/README.md
+++ b/README.md
@@ -1,30 +1,40 @@
 Replaces YouTube comments with random herp derps. Click on the comment text to reveal the original.
-This is modification of github.com/twstokes/herpderp
+This is a fork of [twstokes/herpderp](https://github.com/twstokes/herpderp) with some modifications.
 
 Note: Ignores iframe embedded videos, including the chat replay iframe on YouTube livestream vids.
 
+**Known bugs**
+1. As of 2021-03-24, sometimes when showing the original comment the first few lines are missing.
+   This tends to happen when you've transitioned to the page from another video. Refreshing the page
+   tends to fix the problem. I'll eventually try to fix this.
+
 ## Install
 
 **Firefox**
 * I have a signed xpi that you can immediately install. Open `build/` and drag the xpi into Firefox.
+  It may take a few seconds for the browser to display the extension installation dialog box.
+* You can also find the signed Firefox files in the project's [Releases page](https://github.com/sir-pinecone/youtube-herp-derp-browser-extension/releases).
 
 **Chrome**
-* Unzip the Chrome addon file in the `build` folder.
-* Go to Chrome extensions page. Toggle the developer mode (top-right of page). Click `Load
-  unpacked`.
-* Select the unzipped folder.
+* Go to Chrome extensions page.
+* Toggle the developer mode (top-right of page). 
+* Click `Load unpacked`.
+* Select this project's root folder.
 
 ## Development
 
 ### Local Testing
 
-In Firefox, open about:debugging and click `Load Temporary Add-on...` then select `manifest.json`.
-file.
+* Firefox: open about:debugging and click `Load Temporary Add-on...` then select `manifest.json` file.
+* Chrome: follow the install steps from above.
 
-### Signing and Building
+## Signing and Building
 
+### Firefox
 * Install web-ext with `$ npm install --global web-ext`
 * Generate an unlisted xpi with:
-  'web-ext sign --channel unlisted --api-key <your add-on signing key> --api-secret <your add-on signing secret>`.
-  Those keys can be obtained from https://addons.mozilla.org/en-US/developers/addon/api/key/
-* Drag downloaded xpi into Firefox.
+  `web-ext sign --api-key <your JWT issuer> --api-secret <your JWT secret>`
+    * You can obtain these keys from https://addons.mozilla.org/en-US/developers/addon/api/key/
+* The signed xpi will be in `web-ext-artifacts/`. Drag this into Firefox to install it.
+* Alternatively use the private sign-firefox-extension.sh script (not included in the repo) which places the xpi in `build/`.
+
diff --git a/build/Chome_youtube_herp_derp-1.0.3-.zip b/build/Chome_youtube_herp_derp-1.0.3-.zip
deleted file mode 100644
index 880cb78..0000000
Binary files a/build/Chome_youtube_herp_derp-1.0.3-.zip and /dev/null differ
diff --git a/manifest.json b/manifest.json
index 4a897e4..64b23ef 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "YouTube Herp Derp",
   "description": "Replaces YouTube comments with herp derps. Forked from github.com/twstokes/herpderp",
-  "homepage_url": "https://michael.is",
+  "homepage_url": "https://github.com/sir-pinecone/youtube-herp-derp-browser-extension",
   "version": "1.0.3",
   "icons": {
     "48": "icons/herp48.png",
@@ -11,7 +11,7 @@
   "content_scripts": [
     {
       "run_at": "document_idle",
-      "all_frames": false, // Ignore iframes.
+      "all_frames": false,
       "matches": [
         "https://apis.google.com/*",
         "https://plus.googleapis.com/*",