The Short Answer
Quick answer: Microsoft Edge Add-ons needs one square logo for each language, ideally 300 x 300 pixels and at least 128 x 128. Screenshots are optional, with up to 6 at either 640 x 480 or 1280 x 800. Two promo tiles are optional too: a small one at 440 x 280 and a large one at 1400 x 560.
I read Microsoft's publishing guide for Edge extensions on 9 November 2026. I also checked the store listings of nine popular Edge extensions to see what they upload.
This post covers every image, the text beside them and how to reuse your Chrome artwork.
Where These Rules Come From
Edge extensions are published through Microsoft Partner Center. The rules for each image are in Microsoft's guide to publishing an Edge extension on Microsoft Learn.
Your images don't go inside your extension package. The package holds the manifest file and your extension's own files. The logo, tiles and screenshots are uploaded separately, on the Details page for each language.
That matters when you update. To change the listing images, you edit the Details page. To change the extension's name or short description, you must upload a new package, because those come from the manifest.
Every Image at a Glance
Here's the full set in one table.
| Image | Size in pixels | Required? |
|---|---|---|
| Extension logo | 300 x 300 recommended, 128 x 128 minimum | Yes, for each language |
| Small promotional tile | 440 x 280 | No |
| Large promotional tile | 1400 x 560, as PNG | No |
| Screenshots | 640 x 480 or 1280 x 800, up to 6 | No |
| YouTube video | A link, not a file | No |
So only the logo is required. Everything else is optional, but an empty listing gives people little reason to install.
The Extension Logo
The logo is the one image you can't skip. Microsoft asks for one for every language listed in your extension's package.
It must be square, with a 1 to 1 aspect ratio. Microsoft recommends 300 x 300 pixels and sets a minimum of 128 x 128.
The logo can be your company's logo or your extension's own. For most extensions, the extension's icon is the better choice, since it matches what people see in their toolbar.
You don't need to upload it again for every language. After the first upload, a Duplicate option below the field copies the logo to all your other languages.
Designing a Logo That Scales
Design at 300 x 300, since that's Microsoft's recommended size. Then check how it looks much smaller.
The store shows your logo in lists and search results, often at a small size. So fine lines and small text can turn into a blur.
A few habits help.
- 1Use one simple shape that people can recognize.
- 2Pick strong contrast between the shape and its background.
- 3Leave a little space around the edges, so nothing touches the border.
- 4Skip words, unless they're part of a well known brand.
Before you upload, shrink your file to 128 x 128. If it still reads clearly, it'll work everywhere.
In my sample of nine popular extensions, six logo files were 300 x 300. Two were 150 x 150, and one was 512 x 512.
Screenshot Sizes
Microsoft accepts screenshots at exactly two sizes. Each one has a different shape.
| Size | Shape |
|---|---|
| 640 x 480 | 4 to 3 |
| 1280 x 800 | 16 to 10 |
Choose 1280 x 800 if you can. It's larger and sharper, and it's the size most popular extensions use, as you'll see below.
The 16 to 10 shape also matches many laptop screens. A capture of a full browser window on one of them fits the frame neatly.
Don't upload a screenshot in any other size. The guide says the size must be one of these two.
How Many Screenshots to Add
You can add up to 6 screenshots. Microsoft says they should describe your extension's features in detail.
That's one more than the Chrome Web Store allows. So if you're moving from Chrome, you've got room for one extra picture.
Use each screenshot to show one thing. Start with the main feature working on a real page. Then show the settings, and finish with anything extra.
Like the logo, screenshots have a Duplicate option. After you upload at least one, you can copy it to every other language in your listing.
What Popular Edge Extensions Upload
To see the rules in practice, I opened the store data for nine popular Edge extensions on 9 November 2026. Each listed between 2.6 million and 15.2 million installs.
| Extension | Screenshots | Video |
|---|---|---|
| AdBlock | 4 | No |
| Adblock Plus | 5 | No |
| Grammarly | 5 | No |
| Tampermonkey | 2 | Yes |
| uBlock Origin | 0 | No |
| PayPal Honey | 5 | No |
| LastPass | 5 | No |
| Bitwarden | 6 | Yes |
| Dark Reader | 3 | No |
Eight of the nine showed screenshots. Only Bitwarden used all 6. Four stopped at exactly 5, which is the Chrome Web Store's limit, so that may be a habit carried over from Chrome.
Screenshot Sizes in the Sample
Those nine listings served 35 screenshots between them. I measured each file.
| Size the store served | Screenshots |
|---|---|
| 1280 x 800 | 26 |
| 1366 x 768 | 5 |
| 1280 x 720 | 3 |
| 640 x 400 | 1 |
Most were 1280 x 800, which matches today's rule. But nine of the 35 didn't match either accepted size.
I can't tell why from the outside. They may be older uploads, made before the current rule, or files the store resized. Either way, new uploads should stick to 640 x 480 or 1280 x 800.
None of the 35 screenshots had a caption in the store data.
The Small Promotional Tile
The small promotional tile is optional. Its size must be exactly 440 x 280 pixels.
Microsoft says the store uses it to display your extension alongside other extensions. So it's the image people may see when they browse a group of extensions, not just your own page.
Design it to work at a glance. Your logo, your extension's name and a clean background are usually enough.
Keep the text short. At this size, a long sentence is hard to read. You can upload one tile per language, or copy one to every language with the Duplicate option.
The Large Promotional Tile
The large promotional tile is also optional. It must be a PNG file at exactly 1400 x 560 pixels.
Microsoft says it's used to display your extension more prominently on the Edge Add-ons website. If you upload one, users can see it.
That shape is wide, at 2.5 to 1. It suits a bold banner with your logo on one side and a short line of text on the other.
Make sure it still looks right if the store crops or scales it. Keep the important parts away from the edges.
The YouTube Video
You can add a YouTube video to your listing. It's optional, and you add it as a link, not as a file.
Microsoft says the video's URL and thumbnail appear on your store listing page. So the thumbnail works like one more image, and it's worth choosing with care.
In my sample of nine, two listings had a video: Bitwarden and Tampermonkey. The other seven relied on screenshots alone.
A short video helps most when your extension does something that's hard to show in one still image. For a simple tool, good screenshots may be enough.
The Text Beside Your Images
Your images sit next to a few text fields, and Microsoft sets rules for each one.
| Field | Rule |
|---|---|
| Description | 250 to 10,000 characters, required for each language |
| Short description | Comes from your manifest file |
| Search terms | Optional, and hidden from users |
If you don't add a short description in your manifest, Microsoft says the store shows the first few lines of your description instead. It recommends adding one to avoid repeating the same text.
Partner Center also offers a Generate with AI button for the description. The guide says it looks at your package and any screenshots you've uploaded. You should still read and edit what it writes.
Images in Other Languages
Edge Add-ons treats each language as its own listing. The logo and the description are required for every language in your package.
The other images are optional per language. You can upload different screenshots and tiles for each one, or copy the same files with the Duplicate option.
Translated screenshots help when your extension shows lots of text. A French user will understand a French interface faster than an English one.
If that's too much work, start with your biggest languages. Our guide to localizing store listings covers which parts to translate first.
Reusing Your Chrome Web Store Images
Edge runs the same kind of extensions as Chrome, so much of your Chrome artwork can move straight across.
| Image | Chrome Web Store | Edge Add-ons |
|---|---|---|
| Screenshots | 1280 x 800, up to 5 | 1280 x 800 or 640 x 480, up to 6 |
| Small tile | 440 x 280 | 440 x 280 |
| Large tile | 1400 x 560 | 1400 x 560 |
| Logo or icon | 128 x 128 | 300 x 300 recommended |
The screenshots and both tiles match in size. Only the logo needs a new export, since Edge recommends a larger file.
Our guide to Chrome Web Store image sizes explains the Chrome side in full.
Where PlayMockUp Fits
We make PlayMockUp, so weigh this part with that in mind. Our tool frames screenshots in phones and tablets for app stores. It doesn't make 1280 x 800 desktop screenshots.
Most Edge extensions run on desktop, so plain browser screenshots show them best. A phone frame would suggest the wrong device.
There's one case where it helps. If your extension has a companion phone app, such as a password manager, a phone frame can show that side of your product in a promo tile.
You can frame a phone screenshot in our free mockup generator. Then place it inside your 440 x 280 or 1400 x 560 tile design.
Frequently asked questions
What size is the Microsoft Edge Add-ons logo?
The logo must be square. Microsoft recommends 300 x 300 pixels, with a minimum of 128 x 128. You need one for each language in your extension's package, but you can duplicate it.
What size are Edge extension screenshots?
Screenshots must be either 640 x 480 or 1280 x 800 pixels. You can upload up to 6 of them. Most of the popular extensions I checked used 1280 x 800.
Are promotional tiles required on Edge Add-ons?
No. Both tiles are optional. The small tile is 440 x 280 pixels and the large tile is a 1400 x 560 PNG. Only the logo and the description are required for every language.
How long can an Edge extension description be?
The description must be between 250 and 10,000 characters, and it's required for each language. The short description comes from your manifest file, so you change it by uploading a new package.
Does Firefox use the same image sizes as Edge?
Not quite. Firefox recommends 1280 x 800 screenshots too, but it has no promo tiles. Our guide to [Firefox add-on icon and screenshot sizes](/blog/firefox-add-on-icon-screenshot-sizes-2026) covers its rules.
Build the mockup in your browser.
Drop a screenshot into a real device frame and export at the exact store size — free, no signup.