Alternatives

Products that do what SiteStacks for Firefox does

Simple Firefox extension for advanced tech lookup of any URL

1. 1
   SiteStacks for Chrome▲239

   Instant advanced tech lookup for any website

   2017

2. 2
   Exstats▲225

   Track your browser extensions and competitors in one place

   May 2026

3. 3
   SiteBlocker▲112

   Block distractions & stay focused | Chrome/Firefox extension

   2025

4. 4
   Firebug 2.0 (for Firefox)▲81

   The most popular and powerful web development tool

   2014

5. 5
   Firefox Advance▲166

   Experimental recommendation engine built into Firefox

   2018

6. 6
   Firefox Focus▲168

   A free, fast and easy to use private browser.

   2016

7. 7
   Sitechecker▲314

   Toolkit to measure and track website SEO performance

   2020

8. 8
   Infoscope▲244

   A chrome extension for advanced search on Google

   2020

9. 9
   SEO Tool Extension▲195

   Your favorite SEO tools, placed for quick access.

   2019

10. 10AF
    A Firefox extension to add latency to distracting webpages▲232

    2020 · addons.mozilla.org

11. 11
    PageX▲39

    The X-ray report of any webpage

    2025

12. 12
    Beagle Security: Web Security Assessment▲235

    Free browser extension to know security score of any website

    2023

13. 13
    Spaces▲103

    A Chrome take on Firefox's 'Tab Groups' feature

    2015

14. 14
    Extension Rank▲138

    Discover extensions for Chrome, Firefox and Opera browsers

    2020

15. 15
    Firefox Developer Edition▲139

    Built for those who build the Web

    2014

16. 16
    ExtensionFoxs Chrome Extensions▲115

    Powerful chrome extensions for instagram marketers

    2024

17. 17
    CloudTabs▲139

    A browser in a computer in your browser

    2024

18. 18
    LINER for Firefox▲79

    Read, highlight, and share on Firefox

    2017

19. 19FA
    Firefox add on which logs YouTube urls so you can download them later▲43

    2016 · github.com

20. 20
    Motion on Firefox▲133

    Best time and attention manager, now available on Firefox

    2021

21. 21AF
    A Firefox extension to leave comments on any URL▲227

    2019 · github.com

22. 22
    Memex 1.0▲143

    Search, Annotate and Organize what you've read online.

    2019

23. 23
    Font Face Ninja▲196

    Browser extension to quickly find the webfonts a site uses

    2014

24. 24
    SEO Minion▲132

    Chrome extension & Firefox add-on to help you with SEO

    2019

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