Dev tools · alternatives · 2026
24 alternatives to SiteStacks for Firefox
Simple Firefox extension for advanced tech lookup of any URL
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. SiteStacks for Firefox launched in 2017; newer entries below may have overtaken it.
- 1
Instant advanced tech lookup for any website
2017 · chromewebstore.google.com · its alternatives →
- 2
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- 4
Download DelayWebpage for Firefox. Sets a small delay to certain websites to help you browse more mindfully.
2020 · addons.mozilla.org · its alternatives →
- 5
An extension for Firefox and Chrome to add comments to any URL - comntr/webext
2019 · github.com · its alternatives →
- 6
Exstats▲225Track your browser extensions and competitors in one place
May 2026 · exstats.com · its alternatives →
- 7
SiteBlocker▲112Block distractions & stay focused | Chrome/Firefox extension
2025 · blockodile.app · its alternatives →
- 8
A wallpaper-like gallery of beautiful websites
2016 · chromewebstore.google.com · its alternatives →
- 9
Turn your new tab into a team checklist, note, outline ⚡️✏️✅
2018 · chromewebstore.google.com · its alternatives →
- 10
The most popular and powerful web development tool
2014 · getfirebug.com · its alternatives →
- 11
2016 · github.com · its alternatives →
- 12
Sitechecker▲303Toolkit to measure and track website SEO performance
2020 · sitechecker.pro · its alternatives →
- 13
Firefox Advance▲166Experimental recommendation engine built into Firefox
2018 · support.mozilla.org · its alternatives →
- 14
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Firefox Focus▲168A free, fast and easy to use private browser.
2016 · blog.mozilla.org · its alternatives →
- 16
Your favorite SEO tools, placed for quick access.
2019 · chromewebstore.google.com · its alternatives →
- 17
Download Grasshopper for Firefox. Advanced Tab Manager
2023 · addons.mozilla.org · its alternatives →
- 18RT
2022 · madprops.github.io · its alternatives →
- 19
- 20FA
Introducing QuaranTab: Companion extension to quarantine tabs so you can safely use them offline with private data I find myself wanting to use online format parsers to quickly decode that production JWT or decode a base64 Authorization header but cannot trust these websites to not leak my information. I thought to myself if only I could cut-off network access to this site, use it offline, and then throw away all browsing data. So I created an extension just for that. It uses Firefox contextual identities API (Containers) to isolate browsing data and inter-tab communication. Once the site is…
2023 · its alternatives →
- 21AC
Practical guides to browser DevTools and AI-assisted debugging — Chrome, Firefox, Safari and Edge. Panels, shortcuts, performance traces and accessibility.
2014 · devtoolstips.com · its alternatives →
- 22AF
Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.
2015 · addons.mozilla.org · its alternatives →
- 23
Spaces▲103A Chrome take on Firefox's 'Tab Groups' feature
2015 · chromewebstore.google.com · its alternatives →
- 24
New Chrome extension to monitor a website/area of a website
2014 · chromewebstore.google.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →