Terms of Service
Last updated: August 21, 2026
These Terms of Service govern the AdTab Killer browser extension (the Extension), the website at adtabkiller.htmyname.dev (the Website) and the account and licensing service behind them, together the Service. By installing the Extension, creating an account or purchasing a license, you agree to be bound by these terms. If you do not agree to them, do not use the Service.
1. The Service
AdTab Killer closes unwanted tabs and windows opened by advertising scripts and intrusive websites. Its core features are provided free of charge and will remain so. Pro features require a paid license held by an account.
The Extension is distributed through the Chrome Web Store, Microsoft Edge Add-ons and Firefox Browser Add-ons. The terms of the store from which you installed it apply to that distribution in addition to these terms.
2. Accounts
An account is created by a purchase; there is no separate registration on any surface. Following a purchase you receive a one-time link by email with which you set the password for the account. Until you do so, the account exists without a password.
You are responsible for the accuracy of the email address provided at checkout, for keeping your password confidential and for all activity occurring under your account. You must notify us without undue delay if you believe your account has been accessed without your authorisation.
An account is personal to one individual. Account credentials may not be shared, and any person in possession of your password is able to take control of the account.
3. Your license
- A license is granted to you as a personal, non-exclusive, non-transferable and revocable right to use the Pro features of the Extension. It constitutes a license to use the software and not a sale of it.
- A license is held by one account and covers up to 10 linked installations. An installation is one copy of the Extension in one browser profile; a reinstallation, or the use of two browsers on one machine, occupies a further slot.
- You may unlink installations at any time from your account portal in order to free slots. An unlinked installation ceases to receive Pro features until it is linked again.
- The scope and duration of a license are those described at the point of purchase. A license confers no entitlement to features of a product that was not purchased.
- Pro features require an internet connection in order to be validated. The Extension validates the license with our servers periodically. It continues to operate offline for a limited period between validations; where it is unable to validate for longer than that period, Pro features cease to operate until validation is possible. The free features are unaffected and require no connection at any time.
- Cloud sync stores an encrypted copy and does not constitute a backup. Where enabled, the copy held on our servers exists so that your other browsers can obtain a change; the settings themselves reside in each of your browsers and are removed by nothing done here. We are unable to read that copy, and one consequence follows from that same fact: changing or resetting your password deletes it, because the key that unlocks it is derived from your password. Your browsers are unaffected and the first to sign in uploads its copy again. Where you require a copy that you keep yourself, the Extension can export your settings to a file.
- A license may not be resold, sublicensed, rented or otherwise transferred.
4. Acceptable use
You agree not to:
- circumvent, or attempt to circumvent, the limits of a license, including the limit on linked installations;
- access the Service by automated means beyond those employed by the Extension in normal operation, or in a manner that places an unreasonable load upon it;
- use our forms to send messages to addresses you do not control;
- attempt to obtain access to an account, a license or any part of the Service that is not yours;
- copy, decompile or modify the Extension except to the extent expressly permitted by law, or redistribute it outside the official stores.
Requests to the Service are rate limited and certain forms are protected by an anti-bot verification. These measures may refuse a request that appears automated, including, on occasion, a legitimate one.
5. Payments
Prices are those displayed at the time of purchase and include any taxes stated at checkout. Payments are processed by Stripe; we do not receive or store card details. A license is issued once payment is confirmed.
6. Refunds
You may request a full refund within 30 days of your purchase, for any reason. No explanation is required and no fault need be established. Contact us using the details in Section 15 and include the email address used at checkout.
A refund terminates the license to which it relates, and the paid features cease to operate. Where you purchased an upgrade and refund the upgrade alone, the level held before it is retained.
The amount is returned to the payment method used. We submit it to Stripe upon handling your request; the time it then takes to appear is determined by your bank or card issuer, and is usually a few business days.
Statutory rights of withdrawal or refund applicable in your place of residence are unaffected by this section, and nothing in these terms limits them. Where those rights afford you a longer period or a greater remedy than the 30 days stated above, those rights apply.
7. Suspension and termination
We may suspend or terminate an account, with notice where practicable, where it is used in breach of Section 4, where a payment is reversed or disputed, or where required by law. A suspended account cannot sign in and its licenses cease to be validated.
You may cease using the Service at any time, and you may delete your account yourself from your account pages. Deletion removes the account, its licenses and its linked devices, cannot be reversed and does not constitute a refund: as a purchase is what creates an account, returning means purchasing again. Records of purchases are retained as described in our Privacy Policy.
8. Availability and changes to the Service
We aim to keep the Service available, but it may be interrupted for maintenance, for reasons attributable to third-party providers, or for causes beyond our reasonable control. We may add, modify or discontinue features. Where we discontinue a feature for which a paid license was purchased, we will offer a proportionate refund.
9. Intellectual property
The Extension, the Website and their content remain our property or that of our licensors. These terms grant you no rights in them other than the license described in Section 3.
10. Third-party trademarks
Google Chrome and the Chrome logo are trademarks of Google LLC. Firefox and the Firefox logo are trademarks of the Mozilla Foundation. Microsoft Edge and the Edge logo are trademarks of Microsoft Corporation. The browser names and marks shown on this site, including the simplified icons beside the store links, are used solely to identify the browsers with which the Extension is compatible and the places from which it can be installed. Such use implies no affiliation with, sponsorship by or endorsement by their respective owners. AdTab Killer is an independent product.
11. Disclaimer of warranties
The Service is provided on an as is and as available basis. To the extent permitted by law, we make no warranty that it will block every unwanted tab, that it will be uninterrupted or free from error, or that it is fit for any particular purpose. Nothing in this section excludes a warranty that cannot be excluded under the law applicable to you as a consumer.
12. Limitation of liability
To the extent permitted by law, we are not liable for indirect or consequential loss, loss of data or loss of profit arising from the use of, or the inability to use, the Service. Our total liability in connection with the Service is limited to the amount paid by you for the license in the twelve months preceding the event giving rise to the claim. We do not exclude or limit liability for death or personal injury caused by negligence, for fraud, or for any other liability that cannot be excluded by law.
13. Changes to these terms
We may update these terms. The date shown at the top is amended accordingly, and substantial changes are announced on the What's new page. Continued use of the Service after a change constitutes acceptance of the updated terms. If you do not accept them, cease using the Service and, where you hold a license that is materially affected, contact us.
14. Governing law and disputes
These terms are governed by the laws of the State of Florida, United States, without regard to its conflict of law rules.
Where you are a consumer, the preceding paragraph deprives you of nothing. You retain the mandatory protections of the law of the country in which you reside, and you may bring proceedings before the courts of that country. To the extent that those rules and the preceding paragraph conflict, those rules prevail.
In all other cases, the state and federal courts located in Polk County, Florida have exclusive jurisdiction, and both parties submit to that jurisdiction.
Before commencing proceedings, write to us (Section 15). The majority of requests we receive concern refunds, which are granted within 30 days without explanation (Section 6).
15. Contact
AdTab Killer is a fictitious name registered in the State of Florida and is operated as a sole proprietorship by Handrit Trimino.
Business address:5617 Old Highway 37
Lakeland, FL 33811
United States
Email: support-adtabkiller@htmyname.dev
When writing, include the email address used at checkout: that address is what identifies an account, and without it we cannot match your message to a purchase.