Developers Insight On Manifest v3 Privacy and Security Webextensions
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909694883266560 |
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| author | Polčák, Libor Maone, Giorgio McMahon, Michael Bednář, Martin |
| author_facet | Polčák, Libor Maone, Giorgio McMahon, Michael Bednář, Martin |
| contents | Webextensions can improve web browser privacy, security, and user experience. The APIs offered by the browser to webextensions affect possible functionality. Currently, Chrome transitions to a modified set of APIs called Manifest v3. This paper studies the challenges and opportunities of Manifest v3 with an in-depth structured qualitative research. Even though some projects observed positive effects, a majority expresses concerns over limited benefits to users, removal of crucial APIs, or the need to find workarounds. Our findings indicate that the transition affects different types of webextensions differently; some can migrate without losing functionality, while other projects remove functionality or decline to update. The respondents identified several critical missing APIs, including reliable APIs to inject content scripts, APIs for storing confidential content, and others. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_13926 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Developers Insight On Manifest v3 Privacy and Security Webextensions Polčák, Libor Maone, Giorgio McMahon, Michael Bednář, Martin Cryptography and Security Computers and Society Webextensions can improve web browser privacy, security, and user experience. The APIs offered by the browser to webextensions affect possible functionality. Currently, Chrome transitions to a modified set of APIs called Manifest v3. This paper studies the challenges and opportunities of Manifest v3 with an in-depth structured qualitative research. Even though some projects observed positive effects, a majority expresses concerns over limited benefits to users, removal of crucial APIs, or the need to find workarounds. Our findings indicate that the transition affects different types of webextensions differently; some can migrate without losing functionality, while other projects remove functionality or decline to update. The respondents identified several critical missing APIs, including reliable APIs to inject content scripts, APIs for storing confidential content, and others. |
| title | Developers Insight On Manifest v3 Privacy and Security Webextensions |
| topic | Cryptography and Security Computers and Society |
| url | https://arxiv.org/abs/2507.13926 |