CRX id
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Description from extension meta
Tero turns your browser into a force of positive change and lets you fight climate change simply by browsing online.
Image from store
Description from store
➤ What Tero does
Tero is a privacy-first browser extension that transforms your new tab into a beautiful, customizable dashboard. It streamlines your browsing experience, and supports real rainforest conservation efforts through responsible digital habits.
By using Tero, you help support initiatives that protect and preserve vital forests around the world.
We donate 80% of our profits to trusted organizations working on reforestation and forest conservation projects.
How it works? It's easy - once you click on advertisers' links, it generates revenue which we use to fund these impactful efforts.
➤ Key features
✓ Saving existing trees
✓ A personalized new-tab page with beautiful rotating background images
✓ One-click access to your favorite websites and tools
✓ Built-in ad blocking to reduce clutter and lower energy use
✓ Optional updates and highlights from eco-focused projects
✓ Tree counters to visualize your contribution over time
✓ Private and secure search, with the ability to choose your engine
➤ Privacy comes first
Tero doesn’t track the websites you visit or the content you view. We only use permissions necessary to function, like replacing ads or checking if a site is a partner—while preserving your privacy. Ads served through Tero are provided by ethical partners and may use anonymized data to ensure relevance.
➤ Why forest conservation?
We focus on saving existing forests, which has been shown to be a more efficient and impactful way to address climate change than planting trees alone.
Here’s why:
✓ Forest protection can deliver up to 30x more climate benefits per acre compared to planting trees.
✓ It helps preserve ecosystems and communities that depend on these forests.
✓ Conservation typically requires less cost and land to make a measurable impact.
➤ How Tero fits in with other tools
Ecosia and OceanHero are eco-friendly search engines that work seamlessly with Tero. You can set them as your default search engine within the extension.
Tab for a Cause offers another great charitable tab page, but Tero provides deeper functionality and customization options.
➤ Learn more
Website: https://www.jointero.org
FAQs: https://blog.jointero.org/faq
Privacy: https://blog.jointero.org/privacy
Blog: https://blog.jointero.org
Installation tip: After installing, click “Keep it” when prompted by Chrome to ensure Tero shows up correctly on each new tab.
Latest reviews
- (2025-06-07) LOGHAN GHØSTZ: PERFECT THE BEST EVER TO DO IT.
- (2025-04-17) R R: thank you team TERO keeping growing ,save trees ,plant trees
- (2025-04-15) Šimun Barić: Beautiful thing for Nature.
- (2025-01-29) Susie Pettit: Super easy - doesn't slow anything down and I love saving trees
- (2024-05-05) AJ Beandip: I'd been using OpenTabs for at least a year when they announced their rebranding and expansion as Tero. Since then, I've seen their company: -Remove their formerly-public financial reports from their site (and trust me, I searched high and low for recent ones); -Reduce their contact methods to Discord and Instagram only (which is great, because I don't like or use either platform); -Implement a flawed and confusing sponsor program that supposedly funds tree preservation with visits to partner sites, without publishing a current list of partners or criteria for joining the sponsorship program; -Regularly remove or reinstate sponsors without warning at random intervals, even if those sponsors were listed on the new tab page on the same day they were suspended from the program; -Fail to fix their coding so that ads on new tabs don't force the whole browser to a screeching halt (this is why I keep adblock active on Tero pages, even on a high-end PC); -Suggest new features that remain perpetually on the horizon, like some kind of digital mirage; and -Trim away at their knowledgebase to cover only the most basic questions (bring back your Notion, jerks!). And as the cherry on top, their so-called blog hasn't seen new posts since 2023 at the latest. There are no in-app or blog updates for any of their extensions (Tabs, Ads, Cash which is probably vaporware at this point), and they still haven't offered a public postmortem for the quiet shutdown of OpenTabs Games and Surveys. Tero might have dragged Tab for a Cause for high expenses and low donations, but at least Team Gladly releases occasional feature updates and regular quarterly reports. If the devs are reading this at all, I have one message for you: Be transparent like you promised. Oh, and explain why sites like Walmart are allowed to join your sponsorship program to greenwash their own footprint.
- (2024-04-14) Muskan Aggarwal: I've been using this for a long time but all of sudden its not working. When I open a new tab it flashes up and then disappears, please fix this I love Tero but i hate opening a blank screen
- (2024-04-14) Adrian Chase: As another user pointed out, this extension stopped working for me as well. The default new tab flashes up, but then it stops working!!!!!!!!!!!!!! Please fix!
- (2024-04-13) freddy: I have used this for a long time, but just today it starting not working. Whenever I open a new tab, the screen flashes the open tab screen and then turns solid grey, not allowing me to use any of the features.
- (2024-04-08) matthew plovich: its cool, love saving trees
- (2024-04-08) matthew plovich: its cool, love saving trees
- (2023-12-16) Aly Elsiginy: treees
- (2023-11-28) Jaclyn Soo: I miss the personalised 'Good morning, ____'
- (2023-07-23) totally not possessed: on my old laptop i had 483 trees saved, and when i switched to a new laptop under the same email and account, i had to restart my count. I then de-installed and re-installed it, and now my number has been reset on both accounts. please reinstate my tree count to 483 and give me my badges back.
- (2023-07-23) totally not possessed: on my old laptop i had 483 trees saved, and when i switched to a new laptop under the same email and account, i had to restart my count. I then de-installed and re-installed it, and now my number has been reset on both accounts. please reinstate my tree count to 483 and give me my badges back.
- (2023-06-20) Vishnu Vardhana: loving it
- (2023-06-20) Vishnu Vardhana: loving it
- (2023-06-16) HARIKA MUNAGALA: i love planting trees
- (2023-06-16) HARIKA MUNAGALA: i love planting trees
- (2023-05-30) gabs: Recently been struggling to use Google Docs or Google Sheets, as whenever I went to their site, it would say "Unable to load". Went through my extensions and disabled them one-by-one to find out what was causing it. Turns out it was this application. I will be disabling it until this is corrected.
- (2023-05-30) gabs: Recently been struggling to use Google Docs or Google Sheets, as whenever I went to their site, it would say "Unable to load". Went through my extensions and disabled them one-by-one to find out what was causing it. Turns out it was this application. I will be disabling it until this is corrected.
- (2023-05-30) 무명: Easy to use.
- (2023-05-30) 무명: Easy to use.
- (2023-05-23) Maniesh Ramanayake: I just reinstalled this extension after getting a new laptop. I used it last year when it was called OpenTabs. This sudden change in name and extension is quite concerning, escpecially since I can't seem to find a reason or even a reference to it on their site. The old site (opentabs.org) would be open about transparency, they even had up to date financial reports. The new "tero" doesn't have any financial report or references to the old organisation. If i remember correctly they had some financial issues last year forcing them to reduce the number of trees they plant per advertisement impression. Was it poor management? They were spending almost €1500 on an office in Madrid, €1600 on employees, €600 on server/software, €1600 on banking/accounting/fees. All while having insufficient growth in their user-base. Based on their social media posts they appear to be doing their best (probably had to cut back expenses). I would appreciate a post explaining the changes that have taken place (It doesn't take much time, effort or money to do this), and maybe at least a simple report of last years financials, since this is a purported non-profit with a ".org" domain. Until then, I shall keep this app disabled and not recommend this to friends/family. I have seen apps/extensions like this sell out their user-base to a larger for profit organization when they feel they have had enough or want to cash out. Hopefully they won't do that.
- (2023-05-23) Maniesh Ramanayake: I just reinstalled this extension after getting a new laptop. I used it last year when it was called OpenTabs. This sudden change in name and extension is quite concerning, escpecially since I can't seem to find a reason or even a reference to it on their site. The old site (opentabs.org) would be open about transparency, they even had up to date financial reports. The new "tero" doesn't have any financial report or references to the old organisation. If i remember correctly they had some financial issues last year forcing them to reduce the number of trees they plant per advertisement impression. Was it poor management? They were spending almost €1500 on an office in Madrid, €1600 on employees, €600 on server/software, €1600 on banking/accounting/fees. All while having insufficient growth in their user-base. Based on their social media posts they appear to be doing their best (probably had to cut back expenses). I would appreciate a post explaining the changes that have taken place (It doesn't take much time, effort or money to do this), and maybe at least a simple report of last years financials, since this is a purported non-profit with a ".org" domain. Until then, I shall keep this app disabled and not recommend this to friends/family. I have seen apps/extensions like this sell out their user-base to a larger for profit organization when they feel they have had enough or want to cash out. Hopefully they won't do that.
- (2023-04-30) Davis: I've used OpenTabs for a long time now, and when it came time to migrate Tero was just a better version of that. It achieves the goal of tackling climate change in a modern and sustainable way without getting in the way of day to day life. You guys do amazing work, and I appreciate everything that you've done so far. Sticking with this for as long as it's around.
- (2023-04-30) Davis: I've used OpenTabs for a long time now, and when it came time to migrate Tero was just a better version of that. It achieves the goal of tackling climate change in a modern and sustainable way without getting in the way of day to day life. You guys do amazing work, and I appreciate everything that you've done so far. Sticking with this for as long as it's around.
- (2023-04-27) Factorial Factorial: I started with OpenTabs a while ago when I was trying to help the climate. Tero is just a better version of OpenTabs. I shared it with my family and together we have saved more than 50K trees. It's always nice to have the bragging rights that I've saved 50K trees, and this extension makes it so easy that I don't even think about saving trees yet I still am saving trees. This is the best extension I have downloaded, and I love all the customizable features, they really make my new page my own while still allowing me to save trees! For anyone who doesn't have this extension, you're missing out on a lot.
- (2023-04-27) Factorial Factorial: I started with OpenTabs a while ago when I was trying to help the climate. Tero is just a better version of OpenTabs. I shared it with my family and together we have saved more than 50K trees. It's always nice to have the bragging rights that I've saved 50K trees, and this extension makes it so easy that I don't even think about saving trees yet I still am saving trees. This is the best extension I have downloaded, and I love all the customizable features, they really make my new page my own while still allowing me to save trees! For anyone who doesn't have this extension, you're missing out on a lot.
- (2023-04-07) Clara Greco: So inspiring! I've been waiting for something like Tero to come along for a long time: a straightforward way to help the planet without doing much. I really feel like if i am making a difference.Because I am.I LOVE IT SOO MUCHH!!!
- (2023-04-07) Clara Greco: So inspiring! I've been waiting for something like Tero to come along for a long time: a straightforward way to help the planet without doing much. I really feel like if i am making a difference.Because I am.I LOVE IT SOO MUCHH!!!
- (2023-04-06) Samuel Nihoul: Perfect. The ad override feature breaks some payment portals though.
- (2023-04-06) Samuel Nihoul: Perfect. The ad override feature breaks some payment portals though.
- (2023-04-04) craig: I love this and OceanHero or Ecosia. It doesn't get in the way of anything. I liked that OpenTabs let us choose a selection of backgrounds from a gallery (especially the daily change up) Tero occasionally brings me back to that Introduction tutorial page where it just shows me around and resets the rate that you can plant trees, (10 tabs=1 tree) but it keeps my tree count! Definitely recommend, I'm sure the devs will patch the bugs.
- (2023-04-04) craig: I love this and OceanHero or Ecosia. It doesn't get in the way of anything. I liked that OpenTabs let us choose a selection of backgrounds from a gallery (especially the daily change up) Tero occasionally brings me back to that Introduction tutorial page where it just shows me around and resets the rate that you can plant trees, (10 tabs=1 tree) but it keeps my tree count! Definitely recommend, I'm sure the devs will patch the bugs.
- (2023-03-08) E: Update 2: Decided to update my rating after reading the response from the developer. I don't like how I was forced to migrate to this extension from the old extension [Overlay on old extension saying that old extension will cease and stop working and to install this extension]. My understanding is previous one only used your tab. This new one collects data or alters things on all your webpages. I'm especially worried about it after I realized it broke the website for my bank website. I was so confused why my bank website wasn't working. At first I tried a different browser it worked. So I thought it was cookies. I deleted all that. Still didn't work. I manually switched off all my extensions until I narrowed it down to Tero. I never expected Tero to be the culprit. When I turn it on my bank website stops working and I'm getting errors, when I turn it off it the website works again. Due to this I have lost all faith in this extension, and it makes me worried about what it might be tracking. Update 1: Upon reflection, I decided to revise my rating from 1 star to 2 stars. While I believe that the creators of this extension likely have good intentions. I believe that it was unwise to force users to migrate to a new version that had fully been rewritten that still had unresolved bugs and, as other users have pointed out, lacked some of the features of the previous extension. Maybe a beta where users could opt in to try the new extension would've been better. [On the other hand, it's possible that the development team is small, and managing two extensions simultaneously may have been too much]
- (2023-03-08) E: Update 2: Decided to update my rating after reading the response from the developer. I don't like how I was forced to migrate to this extension from the old extension [Overlay on old extension saying that old extension will cease and stop working and to install this extension]. My understanding is previous one only used your tab. This new one collects data or alters things on all your webpages. I'm especially worried about it after I realized it broke the website for my bank website. I was so confused why my bank website wasn't working. At first I tried a different browser it worked. So I thought it was cookies. I deleted all that. Still didn't work. I manually switched off all my extensions until I narrowed it down to Tero. I never expected Tero to be the culprit. When I turn it on my bank website stops working and I'm getting errors, when I turn it off it the website works again. Due to this I have lost all faith in this extension, and it makes me worried about what it might be tracking. Update 1: Upon reflection, I decided to revise my rating from 1 star to 2 stars. While I believe that the creators of this extension likely have good intentions. I believe that it was unwise to force users to migrate to a new version that had fully been rewritten that still had unresolved bugs and, as other users have pointed out, lacked some of the features of the previous extension. Maybe a beta where users could opt in to try the new extension would've been better. [On the other hand, it's possible that the development team is small, and managing two extensions simultaneously may have been too much]
- (2023-03-02) Lucija Karaman: I have it for 6 months now and it is great! Only would like to bring back planting buddies like in OpenTabs :)
- (2023-03-02) Lucija Karaman: I have it for 6 months now and it is great! Only would like to bring back planting buddies like in OpenTabs :)
- (2023-03-02) Ophelia: honestly great, ive used it for probably 6 months now, it doesnt interfere or get in the way of anything and it makes me happy to see all the trees ive saved in the corner, i just hit 66 this morning.
- (2023-03-02) Ophelia: honestly great, ive used it for probably 6 months now, it doesnt interfere or get in the way of anything and it makes me happy to see all the trees ive saved in the corner, i just hit 66 this morning.
- (2023-02-26) alondra florean: Have had this extension for more than a year, best decision ever ! I can't imagine not having it, cute backgrounds and knowing I'm helping the environment. 10/10 :D
- (2023-02-26) alondra florean: Have had this extension for more than a year, best decision ever ! I can't imagine not having it, cute backgrounds and knowing I'm helping the environment. 10/10 :D
- (2023-02-24) Hanna: I just love this extension. It's such an easy way to drive change and be involved without really having to do anything. Been using since last year, I highly recommend!
- (2023-02-24) Hanna: I just love this extension. It's such an easy way to drive change and be involved without really having to do anything. Been using since last year, I highly recommend!
- (2023-02-21) Dalel Sarkis: Great mission and message, nice on the eyes and I have found that like it more than the normal google browser since it's customizable and it allows you to use tons of shortcuts.
- (2023-02-21) Dalel Sarkis: Great mission and message, nice on the eyes and I have found that like it more than the normal google browser since it's customizable and it allows you to use tons of shortcuts.
- (2023-02-21) Smolbebe :o: I really liked it and used it very often but since yesterday this extension doesn't let me play videos on a lot of websites like Crunchyroll, when I deactivate the extension it works again.
- (2023-02-21) Smolbebe :o: I really liked it and used it very often but since yesterday this extension doesn't let me play videos on a lot of websites like Crunchyroll, when I deactivate the extension it works again.
- (2023-02-20) Bernardo Altamirano: Loved it! Really happy I can make a positive impact in the world by browsing.
- (2023-02-20) Bernardo Altamirano: Loved it! Really happy I can make a positive impact in the world by browsing.